def test_make(self):
ContinuousVariable._clear_cache()
age1 = ContinuousVariable.make("age")
age2 = ContinuousVariable.make("age")
age3 = ContinuousVariable("age")
self.assertEqual(age1, age2)
self.assertNotEqual(age1, age3)
def test_invalid_input_colors(self):
a = ContinuousVariable("a")
a.attributes["colors"] = "invalid"
_ = a.colors
t = Table(Domain([a]))
self.send_signal(self.widget.Inputs.data, t)
def freeviz_variable(i):
v = ContinuousVariable(
"FreeViz Component {}".format(i + 1),
compute_value=FreeVizProjector(self, i, freeviz_transform))
v.to_sql = LinearCombinationSql(
domain.attributes, self.components_[i, :],
getattr(self, 'mean_', None))
return v
def test_make_proxy_cont(self):
abc = ContinuousVariable("abc")
abc1 = abc.make_proxy()
abc2 = abc1.make_proxy()
self.assertIs(abc.master, abc)
self.assertIs(abc1.master, abc)
self.assertIs(abc2.master, abc)
self.assertEqual(abc, abc1)
self.assertEqual(abc, abc2)
self.assertEqual(abc1, abc2)
def test_to_val(self):
string_var = StringVariable("x")
self.assertEqual(string_var.to_val("foo"), "foo")
self.assertEqual(string_var.to_val(42), "42")
cont_var = ContinuousVariable("x")
self.assertTrue(math.isnan(cont_var.to_val("?")))
self.assertTrue(math.isnan(Unknown))
var = Variable("x")
self.assertEqual(var.to_val("x"), "x")
def test_colors(self):
a = ContinuousVariable("a")
self.assertEqual(a.colors, ((0, 0, 255), (255, 255, 0), False))
self.assertIs(a.colors, a._colors)
a = ContinuousVariable("a")
a.attributes["colors"] = ['#010203', '#040506', True]
self.assertEqual(a.colors, ((1, 2, 3), (4, 5, 6), True))
a.colors = ((3, 2, 1), (6, 5, 4), True)
self.assertEqual(a.colors, ((3, 2, 1), (6, 5, 4), True))
def test_copy_descriptor_continuous(self):
var = ContinuousVariable("foo", number_of_decimals=42)
var.attributes = {"bar": 42, "baz": 13}
copied = copy_descriptor(var)
self.assertIsInstance(copied, ContinuousVariable)
self.assertEqual(copied.name, "foo")
self.assertEqual(copied.number_of_decimals, 42)
self.assertEqual(copied.attributes, var.attributes)
self.assertIsNot(copied.attributes, var.attributes)
var = ContinuousVariable("foo", number_of_decimals=42)
copied = copy_descriptor(var, "cux")
self.assertEqual(copied.name, "cux")
def test_construct_numeric_names(self):
data = Table("iris")
data.domain.attributes[0].name = "0.1"
data.domain.attributes[1].name = "1"
desc = PyListModel(
[ContinuousDescriptor(name="S",
expression="_0_1 + _1",
number_of_decimals=3)]
)
nv = construct_variables(desc, data.domain.variables)
ndata = Table(Domain(nv, None), data)
np.testing.assert_array_equal(ndata.X[:, 0],
data.X[:, :2].sum(axis=1))
ContinuousVariable._clear_all_caches()
def test_proxy_has_separate_colors(self):
abc = ContinuousVariable("abc")
abc1 = abc.make_proxy()
abc2 = abc1.make_proxy()
original_colors = abc.colors
red_to_green = (255, 0, 0), (0, 255, 0), False
blue_to_red = (0, 0, 255), (255, 0, 0), False
abc1.colors = red_to_green
abc2.colors = blue_to_red
self.assertEqual(abc.colors, original_colors)
self.assertEqual(abc1.colors, red_to_green)
self.assertEqual(abc2.colors, blue_to_red)
def transform_continuous(var):
if not self.normalize_continuous:
return var
new_var = ContinuousVariable(var.name)
dma, dmi = dists[var_ptr].max(), dists[var_ptr].min()
diff = dma - dmi
if diff < 1e-15:
diff = 1
if self.zero_based:
new_var.get_value_from = Normalizer(var, dmi, 1 / diff)
else:
new_var.get_value_from = Normalizer(var, (dma + dmi) / 2,
2 / diff)
return new_var
def read(self):
with open(self.filename, "rb") as f:
# read first row separately because of two empty columns
header = f.readline().decode("ascii").rstrip().split("\t")
header = [a.strip() for a in header]
assert header[0] == header[1] == ""
dom_vals = [float(v) for v in header[2:]]
domain = Orange.data.Domain([ContinuousVariable.make("%f" % f) for f in dom_vals], None)
tbl = np.loadtxt(f, ndmin=2)
data = Orange.data.Table(domain, tbl[:, 2:])
metas = [ContinuousVariable.make('map_x'), ContinuousVariable.make('map_y')]
domain = Orange.data.Domain(domain.attributes, None, metas=metas)
data = data.transform(domain)
data[:, metas[0]] = tbl[:, 0].reshape(-1, 1)
data[:, metas[1]] = tbl[:, 1].reshape(-1, 1)
return data
def concatenate_data(tables, filenames, label):
domain, xs = domain_union_for_spectra(tables)
ntables = [(table if isinstance(table, Table) else table[2]).transform(domain)
for table in tables]
data = type(ntables[0]).concatenate(ntables, axis=0)
source_var = StringVariable.make("Filename")
label_var = StringVariable.make("Label")
# add other variables
xs_atts = tuple([ContinuousVariable.make("%f" % f) for f in xs])
domain = Domain(xs_atts + domain.attributes, domain.class_vars,
domain.metas + (source_var, label_var))
data = data.transform(domain)
# fill in spectral data
xs_sind = np.argsort(xs)
xs_sorted = xs[xs_sind]
pos = 0
for table in tables:
t = table if isinstance(table, Table) else table[2]
if not isinstance(table, Table):
indices = xs_sind[np.searchsorted(xs_sorted, table[0])]
data.X[pos:pos+len(t), indices] = table[1]
pos += len(t)
data[:, source_var] = np.array(list(
chain(*(repeat(fn, len(table))
for fn, table in zip(filenames, ntables)))
)).reshape(-1, 1)
data[:, label_var] = np.array(list(
chain(*(repeat(label, len(table))
for fn, table in zip(filenames, ntables)))
)).reshape(-1, 1)
return data
def single_x_reader(self, spc_file):
domvals = spc_file.x # first column is attribute name
domain = Domain([ContinuousVariable.make("%f" % f) for f in domvals], None)
y_data = [sub.y for sub in spc_file.sub]
y_data = np.array(y_data)
table = Orange.data.Table.from_numpy(domain, y_data.astype(float, order='C'))
return table
def extend_attributes(self, X, feature_names, var_attrs=None):
"""
Append features to corpus.
Args:
X (numpy.ndarray): Features to append
feature_names (list): List of string containing feature names
var_attrs (dict): Additional attributes appended to variable.attributes.
"""
self.X = np.hstack((self.X, X))
new_attr = self.domain.attributes
for f in feature_names:
var = ContinuousVariable.make(f)
if isinstance(var_attrs, dict):
var.attributes.update(var_attrs)
new_attr += (var, )
new_domain = Domain(
attributes=new_attr,
class_vars=self.domain.class_vars,
metas=self.domain.metas
)
self.domain = new_domain
def test_decimals(self):
a = ContinuousVariable("a", 4)
self.assertEqual(a.str_val(4.654321), "4.6543")
self.assertEqual(a.str_val(4.654321654321), "4.6543")
self.assertEqual(a.str_val(Unknown), "?")
a = ContinuousVariable("a", 5)
self.assertEqual(a.str_val(0.000000000001), "0.00000")
a = ContinuousVariable("a", 10)
self.assertEqual(a.str_val(0.000000000001), "1e-12")
def _predict_as_table(self, prediction, confidence):
from Orange.data import Domain, ContinuousVariable
means, lows, highs = [], [], []
n_vars = prediction.shape[2] if len(prediction.shape) > 2 else 1
for i, name in zip(range(n_vars),
self._table_var_names or range(n_vars)):
mean = ContinuousVariable('{} (forecast)'.format(name))
low = ContinuousVariable('{} ({:d}%CI low)'.format(name, confidence))
high = ContinuousVariable('{} ({:d}%CI high)'.format(name, confidence))
low.ci_percent = high.ci_percent = confidence
mean.ci_attrs = (low, high)
means.append(mean)
lows.append(low)
highs.append(high)
domain = Domain(means + lows + highs)
X = np.column_stack(prediction)
table = Timeseries.from_numpy(domain, X)
table.name = (self._table_name or '') + '({} forecast)'.format(self)
return table
def transform_continuous(var):
if self.normalize_continuous == self.Leave:
return var
elif self.normalize_continuous == self.NormalizeBySpan:
new_var = ContinuousVariable(var.name)
dma, dmi = dists[var_ptr].max(), dists[var_ptr].min()
diff = dma - dmi
if diff < 1e-15:
diff = 1
if self.zero_based:
new_var.get_value_from = Normalizer(var, dmi, 1 / diff)
else:
new_var.get_value_from = Normalizer(var, (dma + dmi) / 2,
2 / diff)
return new_var
elif self.normalize_continuous == self.NormalizeBySD:
new_var = ContinuousVariable(var.name)
avg = dists[var_ptr].mean()
sd = dists[var_ptr].standard_deviation()
new_var.get_value_from = Normalizer(var, avg, 1 / sd)
return new_var
def test_list_attributes_remain_lists(self):
a = ContinuousVariable("a")
a.attributes["list"] = [1, 2, 3]
d = Domain([a])
t = Table(d)
self.send_signal(self.widget.Inputs.data, t)
assert isinstance(self.widget, OWEditDomain)
# select first variable
idx = self.widget.domain_view.model().index(0)
self.widget.domain_view.setCurrentIndex(idx)
# change first attribute value
editor = self.widget.editor_stack.findChild(ContinuousVariableEditor)
assert isinstance(editor, ContinuousVariableEditor)
idx = editor.labels_model.index(0, 1)
editor.labels_model.setData(idx, "[1, 2, 4]", Qt.EditRole)
self.widget.commit()
t2 = self.get_output(self.widget.Outputs.data)
self.assertEqual(t2.domain["a"].attributes["list"], [1, 2, 4])
def _guess_variable(self, field_name, field_metadata, inspect_table):
type_code = field_metadata[0]
FLOATISH_TYPES = (700, 701, 1700) # real, float8, numeric
INT_TYPES = (20, 21, 23) # bigint, int, smallint
CHAR_TYPES = (25, 1042, 1043,) # text, char, varchar
BOOLEAN_TYPES = (16,) # bool
DATE_TYPES = (1082, 1114, 1184, ) # date, timestamp, timestamptz
# time, timestamp, timestamptz, timetz
TIME_TYPES = (1083, 1114, 1184, 1266,)
if type_code in FLOATISH_TYPES:
return ContinuousVariable.make(field_name)
if type_code in TIME_TYPES + DATE_TYPES:
tv = TimeVariable.make(field_name)
tv.have_date |= type_code in DATE_TYPES
tv.have_time |= type_code in TIME_TYPES
return tv
if type_code in INT_TYPES: # bigint, int, smallint
if inspect_table:
values = self.get_distinct_values(field_name, inspect_table)
if values:
return DiscreteVariable.make(field_name, values)
return ContinuousVariable.make(field_name)
if type_code in BOOLEAN_TYPES:
return DiscreteVariable.make(field_name, ['false', 'true'])
if type_code in CHAR_TYPES:
if inspect_table:
values = self.get_distinct_values(field_name, inspect_table)
# remove trailing spaces
values = [v.rstrip() for v in values]
if values:
return DiscreteVariable.make(field_name, values)
return StringVariable.make(field_name)
def etc_to_table(self, etc_json, time_var=False, callback=lambda: None):
""" Converts data from Json to :obj:`Orange.data.table`
Args:
etc_json (dict): Data in json like format
time_var (bool): Create column of time points. Default is set to False.
Returns:
:obj:`Orange.data.Table`
"""
cbc = CallBack(2, callback, callbacks=30)
variables = []
time_point = 1
for time in etc_json['etc']['timePoints']:
var = ContinuousVariable('TP ' + str(time_point))
var.attributes['Time'] = str(time)
variables.append(var)
time_point += 1
meta_attr = StringVariable.make('Gene')
domain = Domain(variables, metas=[meta_attr])
cbc()
table = []
for row in etc_json['etc']['genes']:
gene_expression = [exp for exp in etc_json['etc']['genes'][row]]
gene_expression.append(row)
table.append(gene_expression)
orange_table = Table(domain, table)
if time_var:
orange_table = transpose_table(orange_table)
cbc()
cbc.end()
return orange_table
def construct_output_data_table(embedded_images, embeddings):
# X = util.hstack((embedded_images.X, embeddings))
# embedded_images.X = X
new_attributes = [ContinuousVariable.make('n{:d}'.format(d))
for d in range(embeddings.shape[1])]
domain_new = Domain(
list(embedded_images.domain.attributes) + new_attributes,
embedded_images.domain.class_vars,
embedded_images.domain.metas)
table = embedded_images.transform(domain_new)
table[:, new_attributes] = embeddings
return table
def read(self):
with open(self.filename, "rb") as f:
#print(f.readline())
if not (f.readline() == b'Gwyddion Simple Field 1.0\n'):
raise ValueError('Not a correct file')
meta = {}
term = False #there are mandatory fileds
while term != b'\x00':
l = f.readline().decode('utf-8')
name, value = l.split("=")
name = name.strip()
value = value.strip()
meta[name] = value
term = f.read(1)
f.seek(-1, 1)
f.read(4 - f.tell() % 4)
meta["XRes"] = XR = int(meta["XRes"])
meta["YRes"] = YR = int(meta["YRes"])
meta["XReal"] = float(meta.get("XReal", 1))
meta["YReal"] = float(meta.get("YReal", 1))
meta["XOffset"] = float(meta.get("XOffset", 0))
meta["YOffset"] = float(meta.get("YOffset", 0))
meta["Title"] = meta.get("Title", None)
meta["XYUnits"] = meta.get("XYUnits", None)
meta["ZUnits"] = meta.get("ZUnits", None)
X = np.fromfile(f, dtype='float32', count=XR*YR).reshape(XR, YR)
metas = [Orange.data.ContinuousVariable.make("x"),
Orange.data.ContinuousVariable.make("y")]
XRr = np.arange(XR)
YRr = np.arange(YR)
indices = np.transpose([np.tile(XRr, len(YRr)), np.repeat(YRr, len(XRr))])
domain = Domain([ContinuousVariable.make("value")], None, metas=metas)
data = Orange.data.Table(domain,
X.reshape(meta["XRes"]*meta["YRes"], 1),
metas=np.array(indices, dtype="object"))
data.attributes = meta
return data
def test_domaineditor_makes_variables(self):
# Variables created with domain editor should be interchangeable
# with variables read from file.
dat = """V0\tV1\nc\td\n\n1.0\t2"""
v0 = StringVariable.make("V0")
v1 = ContinuousVariable.make("V1")
with named_file(dat, suffix=".tab") as filename:
self.open_dataset(filename)
model = self.widget.domain_editor.model()
model.setData(model.createIndex(0, 1), "text", Qt.EditRole)
model.setData(model.createIndex(1, 1), "numeric", Qt.EditRole)
self.widget.apply_button.click()
data = self.get_output(self.widget.Outputs.data)
self.assertEqual(data.domain["V0"], v0)
self.assertEqual(data.domain["V1"], v1)
def multi_x_reader(self, spc_file):
# use x-values as domain
all_x = []
for sub in spc_file.sub:
x = sub.x
# assume values in x do not repeat
all_x = np.union1d(all_x, x)
domain = Domain([ContinuousVariable.make("%f" % f) for f in all_x], None)
instances = []
for sub in spc_file.sub:
x, y = sub.x, sub.y
newinstance = np.ones(len(all_x))*np.nan
ss = np.searchsorted(all_x, x) # find positions to set
newinstance[ss] = y
instances.append(newinstance)
y_data = np.array(instances).astype(float, order='C')
return Orange.data.Table.from_numpy(domain, y_data)
def transpose_table(table):
"""
Transpose the rows and columns of the table.
Args:
table: Data in :obj:`Orange.data.Table`
Returns:
Transposed :obj:`Orange.data.Table`. (Genes as columns)
"""
attrs = table.domain.attributes
attr = [ContinuousVariable.make(ex['Gene'].value) for ex in table]
# Set metas
new_metas = [StringVariable.make(name) if name is not 'Time' else TimeVariable.make(name)
for name in sorted(table.domain.variables[0].attributes.keys())]
domain = Domain(attr, metas=new_metas)
meta_values = [[exp.attributes[var.name] for var in domain.metas] for exp in attrs]
return Table(domain, table.X.transpose(), metas=meta_values)
def read_spectra(self):
am = agilentMosaicIFG(self.filename)
info = am.info
X = am.data
features = np.arange(X.shape[-1])
try:
px_size = info['FPA Pixel Size'] * info['PixelAggregationSize']
except KeyError:
# Use pixel units if FPA Pixel Size is not known
px_size = 1
x_locs = np.linspace(0, X.shape[1]*px_size, num=X.shape[1], endpoint=False)
y_locs = np.linspace(0, X.shape[0]*px_size, num=X.shape[0], endpoint=False)
features, data, additional_table = _spectra_from_image(X, features, x_locs, y_locs)
import_params = ['Effective Laser Wavenumber',
'Under Sampling Ratio',
]
new_attributes = []
new_columns = []
for param_key in import_params:
try:
param = info[param_key]
except KeyError:
pass
else:
new_attributes.append(ContinuousVariable.make(param_key))
new_columns.append(np.full((len(data),), param))
domain = Domain(additional_table.domain.attributes,
additional_table.domain.class_vars,
additional_table.domain.metas + tuple(new_attributes))
table = additional_table.transform(domain)
table[:, new_attributes] = np.asarray(new_columns).T
return (features, data, table)
def test_properties(self):
a = ContinuousVariable()
self.assertTrue(a.is_continuous)
self.assertFalse(a.is_discrete)
self.assertFalse(a.is_string)
self.assertTrue(a.is_primitive())
a = DiscreteVariable()
self.assertFalse(a.is_continuous)
self.assertTrue(a.is_discrete)
self.assertFalse(a.is_string)
self.assertTrue(a.is_primitive())
a = StringVariable()
self.assertFalse(a.is_continuous)
self.assertFalse(a.is_discrete)
self.assertTrue(a.is_string)
self.assertFalse(a.is_primitive())
def transform_discrete(var):
if (len(var.values) < 2 or
treat == Continuize.Remove or
treat == Continuize.RemoveMultinomial and
len(var.values) > 2):
return []
if treat == Continuize.AsOrdinal:
new_var = ContinuousVariable(var.name)
new_var.compute_value = Identity(var)
return [new_var]
if treat == Continuize.AsNormalizedOrdinal:
new_var = ContinuousVariable(var.name)
n_values = max(1, len(var.values))
if self.zero_based:
new_var.compute_value = \
Normalizer(var, 0, 1 / (n_values - 1))
else:
new_var.compute_value = \
Normalizer(var, (n_values - 1) / 2, 2 / (n_values - 1))
return [new_var]
new_vars = []
if treat == Continuize.Indicators:
base = -1
elif treat in (Continuize.FirstAsBase,
Continuize.RemoveMultinomial):
base = max(var.base_value, 0)
else:
base = dists[var_ptr].modus()
ind_class = [Indicator1, Indicator][self.zero_based]
for i, val in enumerate(var.values):
if i == base:
continue
new_var = ContinuousVariable(
"{}={}".format(var.name, val))
new_var.compute_value = ind_class(var, i)
new_vars.append(new_var)
return new_vars
def transform_discrete(var):
if (len(var.values) < 2 or
treat == self.Ignore or
treat == self.IgnoreMulti and len(var.values) > 2):
return []
if treat == self.AsOrdinal:
new_var = ContinuousVariable(var.name)
new_var.get_value_from = Identity(var)
return [new_var]
if treat == self.AsNormalizedOrdinal:
new_var = ContinuousVariable(var.name)
n_values = max(1, len(var.values))
if self.zero_based:
new_var.get_value_from = \
Normalizer(var, 0, 1 / (n_values - 1))
else:
new_var.get_value_from = \
Normalizer(var, (n_values - 1) / 2, 2 / (n_values - 1))
return [new_var]
new_vars = []
if treat == self.NValues:
base = -1
elif treat == self.LowestIsBase or treat == self.IgnoreMulti:
base = max(var.base_value, 0)
else:
base = dists[var_ptr].modus()
IndClass = [Indicator_1, Indicator][self.zero_based]
for i, val in enumerate(var.values):
if i == base:
continue
new_var = ContinuousVariable(
"{}={}".format(var.name, val))
new_var.get_value_from = IndClass(var, i)
new_vars.append(new_var)
return new_vars
def anytime_explain(self, instance, callback=None, update_func=None, update_prediction=None):
data_rows, no_atr = self.data.X.shape
class_value = self.model(instance)[0]
prng = RandomState(self.seed)
self.init_arrays(no_atr)
attr_values = self.get_atr_column(instance)
batch_mx_size = self.batch_size * no_atr
z_sq = abs(st.norm.ppf(self.p_val/2))**2
tiled_inst = self.tile_instance(instance)
inst1 = copy.deepcopy(tiled_inst)
inst2 = copy.deepcopy(tiled_inst)
worst_case = self.max_iter*no_atr
time_point = time.time()
update_table = False
domain = Domain([ContinuousVariable("Score"),
ContinuousVariable("Error")],
metas=[StringVariable(name="Feature"), StringVariable(name = "Value")])
if update_prediction is not None:
update_prediction(class_value)
def create_res_table():
nonzero = self.steps != 0
expl_scaled = (self.expl[nonzero]/self.steps[nonzero]).reshape(1, -1)
# creating return array
ips = np.hstack((expl_scaled.T, np.sqrt(
z_sq * self.var[nonzero] / self.steps[nonzero]).reshape(-1, 1)))
table = Table.from_numpy(domain, ips,
metas=np.hstack((np.asarray(self.atr_names)[nonzero[0]].reshape(-1, 1),
attr_values[nonzero[0]].reshape(-1,1))))
return table
while not(all(self.iterations_reached[0, :] > self.max_iter)):
prog = 1 - np.sum(self.max_iter - self.iterations_reached)/worst_case
if (callback(int(prog*100))):
break
if not(any(self.iterations_reached[0, :] > self.max_iter)):
a = np.argmax(prng.multinomial(
1, pvals=(self.var[0, :]/(np.sum(self.var[0, :])))))
else:
a = np.argmin(self.iterations_reached[0, :])
perm = (prng.random_sample(batch_mx_size).reshape(
self.batch_size, no_atr)) > 0.5
rand_data = self.data.X[prng.randint(0,
data_rows, size=self.batch_size), :]
inst1.X = np.copy(tiled_inst.X)
inst1.X[perm] = rand_data[perm]
inst2.X = np.copy(inst1.X)
inst1.X[:, a] = tiled_inst.X[:, a]
inst2.X[:, a] = rand_data[:, a]
f1 = self._get_predictions(inst1, class_value)
f2 = self._get_predictions(inst2, class_value)
diff = np.sum(f1 - f2)
self.expl[0, a] += diff
# update variance
self.steps[0, a] += self.batch_size
self.iterations_reached[0, a] += self.batch_size
d = diff - self.mu[0, a]
self.mu[0, a] += d / self.steps[0, a]
self.M2[0, a] += d * (diff - self.mu[0, a])
self.var[0, a] = self.M2[0, a] / (self.steps[0, a] - 1)
if time.time() - time_point > 1:
update_table = True
time_point = time.time()
if update_table:
update_table = False
update_func(create_res_table())
# exclude from sampling if necessary
needed_iter = z_sq * self.var[0, a] / (self.error**2)
if (needed_iter <= self.steps[0, a]) and (self.steps[0, a] >= self.min_iter) or (self.steps[0, a] > self.max_iter):
self.iterations_reached[0, a] = self.max_iter + 1
return class_value, create_res_table()
def __init__(self):
super().__init__()
self.data = None
self.model = None
self.to_explain = None
self.explanations = None
self.stop = True
self.e = None
self._task = None
self._executor = ThreadExecutor()
self.dataview = QTableView(verticalScrollBarPolicy=Qt.ScrollBarAlwaysOn,
sortingEnabled=True,
selectionMode=QTableView.NoSelection,
focusPolicy=Qt.StrongFocus)
self.dataview.sortByColumn(2, Qt.DescendingOrder)
self.dataview.horizontalHeader().setResizeMode(QHeaderView.Stretch)
domain = Domain([ContinuousVariable("Score"),
ContinuousVariable("Error")],
metas=[StringVariable(name="Feature"), StringVariable(name="Value")])
self.placeholder_table_model = TableModel(
Table.from_domain(domain), parent=None)
self.dataview.setModel(self.placeholder_table_model)
info_box = gui.vBox(self.controlArea, "Info")
self.data_info = gui.widgetLabel(info_box, "Data: N/A")
self.model_info = gui.widgetLabel(info_box, "Model: N/A")
self.sample_info = gui.widgetLabel(info_box, "Sample: N/A")
criteria_box = gui.vBox(self.controlArea, "Stopping criteria")
self.error_spin = gui.spin(criteria_box,
self,
"gui_error",
0.01,
1,
step=0.01,
label="Error < ",
spinType=float,
callback=self._update_error_spin,
controlWidth=80,
keyboardTracking=False)
self.p_val_spin = gui.spin(criteria_box,
self,
"gui_p_val",
0.01,
1,
step=0.01,
label="Error p-value < ",
spinType=float,
callback=self._update_p_val_spin,
controlWidth=80, keyboardTracking=False)
gui.rubber(self.controlArea)
self.cancel_button = gui.button(self.controlArea,
self,
"Stop Computation",
callback=self.toggle_button,
autoDefault=True,
tooltip="Stops and restarts computation")
self.cancel_button.setDisabled(True)
predictions_box = gui.vBox(self.mainArea, "Model prediction")
self.predict_info = gui.widgetLabel(predictions_box, "")
self.mainArea.layout().addWidget(self.dataview)
self.resize(640, 480)
def get_lsp_results(self, in_data):
attr = in_data.domain.attributes #Obtem os Atributos provenientes do Workflow
target = in_data.domain.class_vars #Obtem as Classes provenientes do Workflow
meta = in_data.domain.metas #Obtem os Meta dados provenientes do Workflow
data = np.array(in_data) #Converte os dados para Numpy Array (Pois a LSP da MPPY trabalha com dados Numpy)
coordinates_2d = mppy.lsp_2d(data, n_neighbors=self.neighborhood) #Calcula as coordenadas em dimensao 2D com o LSP
""" Obtem os Atributos provenientes do Workflow e adiciona os demais"""
X = []
for j in range(len(in_data)):
aux = []
for i in range(len(in_data.domain.attributes)):
attr_name = in_data.domain.attributes[i].name
attr_index = in_data.domain.index(attr_name)
attr_data = in_data[j, attr_index]
aux.append(attr_data)
X.append(aux)
""" Obtem as Classes provenientes do Workflow e adiciona os demais"""
Y = []
for j in range(len(in_data)):
aux = []
for i in range(len(in_data.domain.class_vars)):
values_name = in_data.domain.class_vars[i].name
values_index = in_data.domain.index(values_name)
values_data = in_data[j, values_index]
aux.append(values_data)
Y.append(aux)
""" Obtem os Meta dados provenientes do Workflow e adiciona os demais"""
M = []
for j in range(len(in_data)):
aux = []
for i in range(len(in_data.domain.metas)):
meta_name = in_data.domain.metas[i].name
meta_index = in_data.domain.index(meta_name)
meta_data = in_data[j, meta_index]
aux.append(meta_data)
aux.append(coordinates_2d[j][0]) #Coordenada LSP-x
aux.append(coordinates_2d[j][1]) #Coordenada LSP-y
M.append(aux)
"""Adiciona as informacoes do LSP nos Meta dados, para passar a frente no workflow"""
meta = meta + (ContinuousVariable("LSP-x"),)
meta = meta + (ContinuousVariable("LSP-y"),)
""" Domain(...)
Attributes: attributes (list of Variable) – a list of attributes
Classes: class_vars (Variable or list of Variable) – target variable or a list of target variables
Metas: metas (list of Variable) – a list of meta attributes
Source: source (Orange.data.Domain) – the source domain for attributes """
domain = Domain(
attr,
target,
meta,
None
)
""" Table.from_numpy(...)
Domain: domain (Orange.data.Domain) – the domain for the new table
Values: X (np.array) – array with attribute values
Classes: Y (np.array) – array with class values
#Metas: metas (np.array) – array with meta attributes
Weights: W (np.array) – array with weights """
out_data = Table.from_numpy(
domain,
X,
Y,
M,
None
)
return out_data
def test_missing_values(self):
var = ContinuousVariable("var")
self.assertRaises(ValueError, ContinuousVariableEditor, self.parent,
var, np.nan, np.nan, Mock())
def __init__(self):
super().__init__()
self.data = None
self.subset_data = None
self._subset_mask = None
self._validmask = None
self._X = None
self._Y = None
self._selection = None
self.__replot_requested = False
self.variable_x = ContinuousVariable("freeviz-x")
self.variable_y = ContinuousVariable("freeviz-y")
box0 = gui.vBox(self.mainArea, True, margin=0)
self.graph = OWFreeVizGraph(self,
box0,
"Plot",
view_box=FreeVizInteractiveViewBox)
box0.layout().addWidget(self.graph.plot_widget)
plot = self.graph.plot_widget
box = gui.widgetBox(self.controlArea, "Optimization", spacing=10)
form = QFormLayout(labelAlignment=Qt.AlignLeft,
formAlignment=Qt.AlignLeft,
fieldGrowthPolicy=QFormLayout.AllNonFixedFieldsGrow,
verticalSpacing=10)
form.addRow(
"Initialization",
gui.comboBox(box,
self,
"initialization",
items=["Circular", "Random"],
callback=self.reset_initialization))
box.layout().addLayout(form)
self.btn_start = gui.button(widget=box,
master=self,
label="Optimize",
callback=self.toogle_start,
enabled=False)
self.viewbox = plot.getViewBox()
self.replot = None
g = self.graph.gui
g.point_properties_box(self.controlArea)
self.models = g.points_models
box = gui.widgetBox(self.controlArea, "Show anchors")
self.rslider = gui.hSlider(box,
self,
"radius",
minValue=0,
maxValue=100,
step=5,
label="Radius",
createLabel=False,
ticks=True,
callback=self.update_radius)
self.rslider.setTickInterval(0)
self.rslider.setPageStep(10)
box = gui.vBox(self.controlArea, "Plot Properties")
g.add_widgets([g.JitterSizeSlider], box)
g.add_widgets([g.ShowLegend, g.ClassDensity, g.LabelOnlySelected], box)
self.graph.box_zoom_select(self.controlArea)
self.controlArea.layout().addStretch(100)
self.icons = gui.attributeIconDict
p = self.graph.plot_widget.palette()
self.graph.set_palette(p)
gui.auto_commit(self.controlArea, self, "auto_commit",
"Send Selection", "Send Automatically")
self.graph.zoom_actions(self)
# FreeViz
self._loop = AsyncUpdateLoop(parent=self)
self._loop.yielded.connect(self.__set_projection)
self._loop.finished.connect(self.__freeviz_finished)
self._loop.raised.connect(self.__on_error)
self._new_plotdata()
def __get_pivot_tab_domain(self, val_var, X, X_h, X_v, X_t, agg_funs):
def map_values(index, _X):
values = np.unique(_X[:, index])
values = np.delete(values, np.where(values == "nan")[0])
for j, value in enumerate(values):
_X[:, index][_X[:, index] == value] = j
return values
create_time_var = \
isinstance(val_var, TimeVariable) and \
all(fun in self.TimeVarFunctions for fun in agg_funs)
create_cont_var = \
not val_var or val_var.is_continuous and \
(not isinstance(val_var, TimeVariable) or
all(fun in self.FloatFunctions for fun in agg_funs))
vals = np.array(self._col_var.values)[self._col_var_groups.astype(int)]
if create_time_var:
kwargs = {
"have_date": val_var.have_date,
"have_time": val_var.have_time
}
attrs = [[TimeVariable(f"{v}", **kwargs) for v in vals]] * 2
attrs.extend([[TimeVariable("Total", **kwargs)]] * 2)
elif create_cont_var:
attrs = [[ContinuousVariable(f"{v}", 1) for v in vals]] * 2
attrs.extend([[ContinuousVariable("Total", 1)]] * 2)
else:
attrs = []
for x in (X, X_h):
attrs.append([
DiscreteVariable(f"{v}", map_values(i, x))
for i, v in enumerate(vals, 2)
])
for x in (X_v, X_t):
attrs.append([DiscreteVariable("Total", map_values(0, x))])
row_var_h = DiscreteVariable(self._row_var.name, values=["Total"])
aggr_attr = DiscreteVariable('Aggregate', [str(f) for f in agg_funs])
same_row_col = self._col_var is self._row_var
extra_vars = [self._row_var, aggr_attr]
uniq_a = get_unique_names_duplicates([v.name for v in extra_vars] +
[atr.name for atr in attrs[0]])
for (idx, var), u in zip(enumerate(chain(extra_vars, attrs[0])),
uniq_a):
if var.name == u:
continue
if idx == 0:
self.renamed.append(self._row_var.name)
self._row_var = self._row_var.copy(name=u)
if same_row_col:
self._col_var = self._row_var
row_var_h = row_var_h.copy(name=u)
elif idx == 1:
self.renamed.append(aggr_attr.name)
aggr_attr = aggr_attr.copy(name=u)
else:
self.renamed.append(var.name)
attrs[0][idx - 2] = var.copy(name=u)
attrs[1][idx - 2] = var.copy(name=u)
if same_row_col:
vals = tuple(v.name for v in attrs[0])
self._row_var.make(self._row_var.name, values=vals)
vals = tuple(v.name for v in attrs[2])
row_var_h.make(row_var_h.name, vals)
return (Domain([self._row_var, aggr_attr] + attrs[0]),
Domain([row_var_h, aggr_attr] + attrs[1]), Domain(attrs[2]),
Domain(attrs[3]))
def test_label_changes_yields_modified_labels(self):
v1 = ContinuousVariable("a")
v1.attributes["a"] = "b"
v2 = v1.copy(None)
v2.attributes["a"] = "c"
self.assertNotEmpty(self.report._label_changes(v1, v2))
def test_invalid_input_colors(self):
a = ContinuousVariable("a")
a.attributes["colors"] = "invalid"
t = Table.from_domain(Domain([a]))
self.send_signal(self.widget.Inputs.data, t)
def setUp(self):
z = ContinuousVariable("z")
w = ContinuousVariable("w")
u = ContinuousVariable("u")
self.descs = [owcolor.ContAttrDesc(v) for v in (z, w, u)]
self.model = owcolor.ContColorTableModel()
class TestInstance(unittest.TestCase):
attributes = ["Feature %i" % i for i in range(10)]
class_vars = ["Class %i" % i for i in range(1)]
metas = [DiscreteVariable("Meta 1", values="XYZ"),
ContinuousVariable("Meta 2"),
StringVariable("Meta 3")]
def mock_domain(self, with_classes=False, with_metas=False):
attributes = self.attributes
class_vars = self.class_vars if with_classes else []
metas = self.metas if with_metas else []
variables = attributes + class_vars
return MagicMock(Domain,
attributes=attributes,
class_vars=class_vars,
metas=metas,
variables=variables)
def create_domain(self, attributes=(), classes=(), metas=()):
attr_vars = [ContinuousVariable(name=a) if isinstance(a, str) else a
for a in attributes]
class_vars = [ContinuousVariable(name=c) if isinstance(c, str) else c
for c in classes]
meta_vars = [DiscreteVariable(name=m, values=map(str, range(5)))
if isinstance(m, str) else m
for m in metas]
domain = Domain(attr_vars, class_vars, meta_vars)
return domain
def test_init_x_no_data(self):
domain = self.mock_domain()
inst = Instance(domain)
self.assertIsInstance(inst, Instance)
self.assertIs(inst.domain, domain)
self.assertEqual(inst._x.shape, (len(self.attributes), ))
self.assertEqual(inst._y.shape, (0, ))
self.assertEqual(inst._metas.shape, (0, ))
self.assertTrue(all(isnan(x) for x in inst._x))
def test_init_xy_no_data(self):
domain = self.mock_domain(with_classes=True)
inst = Instance(domain)
self.assertIsInstance(inst, Instance)
self.assertIs(inst.domain, domain)
self.assertEqual(inst._x.shape, (len(self.attributes), ))
self.assertEqual(inst._y.shape, (len(self.class_vars), ))
self.assertEqual(inst._metas.shape, (0, ))
self.assertTrue(all(isnan(x) for x in inst._x))
self.assertTrue(all(isnan(x) for x in inst._y))
def test_init_xym_no_data(self):
domain = self.mock_domain(with_classes=True, with_metas=True)
inst = Instance(domain)
self.assertIsInstance(inst, Instance)
self.assertIs(inst.domain, domain)
self.assertEqual(inst._x.shape, (len(self.attributes), ))
self.assertEqual(inst._y.shape, (len(self.class_vars), ))
self.assertEqual(inst._metas.shape, (3, ))
self.assertTrue(all(isnan(x) for x in inst._x))
self.assertTrue(all(isnan(x) for x in inst._y))
with warnings.catch_warnings():
warnings.simplefilter("ignore", FutureWarning)
assert_array_equal(inst._metas, np.array([Unknown, Unknown, None]))
def test_init_x_arr(self):
domain = self.create_domain(["x", DiscreteVariable("g", values="MF")])
vals = np.array([42, 0])
inst = Instance(domain, vals)
assert_array_equal(inst._x, vals)
self.assertEqual(inst._y.shape, (0, ))
self.assertEqual(inst._metas.shape, (0, ))
domain = self.create_domain()
inst = Instance(domain, np.empty((0,)))
self.assertEqual(inst._x.shape, (0, ))
self.assertEqual(inst._y.shape, (0, ))
self.assertEqual(inst._metas.shape, (0, ))
def test_init_x_list(self):
domain = self.create_domain(["x", DiscreteVariable("g", values="MF")])
lst = [42, 0]
vals = np.array(lst)
inst = Instance(domain, vals)
assert_array_equal(inst._x, vals)
self.assertEqual(inst._y.shape, (0, ))
self.assertEqual(inst._metas.shape, (0, ))
domain = self.create_domain()
inst = Instance(domain, [])
self.assertEqual(inst._x.shape, (0, ))
self.assertEqual(inst._y.shape, (0, ))
self.assertEqual(inst._metas.shape, (0, ))
def test_init_xy_arr(self):
domain = self.create_domain(["x", DiscreteVariable("g", values="MF")],
[DiscreteVariable("y", values="ABC")])
vals = np.array([42, 0, 1])
inst = Instance(domain, vals)
assert_array_equal(inst._x, vals[:2])
self.assertEqual(inst._y.shape, (1, ))
self.assertEqual(inst._y[0], 1)
self.assertEqual(inst._metas.shape, (0, ))
def test_init_xy_list(self):
domain = self.create_domain(["x", DiscreteVariable("g", values="MF")],
[DiscreteVariable("y", values="ABC")])
lst = [42, "M", "C"]
vals = np.array([42, 0, 2])
inst = Instance(domain, vals)
assert_array_equal(inst._x, vals[:2])
self.assertEqual(inst._y.shape, (1, ))
self.assertEqual(inst._y[0], 2)
self.assertEqual(inst._metas.shape, (0, ))
def test_init_xym_arr(self):
domain = self.create_domain(["x", DiscreteVariable("g", values="MF")],
[DiscreteVariable("y", values="ABC")],
self.metas)
vals = np.array([42, "M", "B", "X", 43, "Foo"], dtype=object)
inst = Instance(domain, vals)
self.assertIsInstance(inst, Instance)
self.assertIs(inst.domain, domain)
self.assertEqual(inst._x.shape, (2, ))
self.assertEqual(inst._y.shape, (1, ))
self.assertEqual(inst._metas.shape, (3, ))
assert_array_equal(inst._x, np.array([42, 0]))
self.assertEqual(inst._y[0], 1)
assert_array_equal(inst._metas, np.array([0, 43, "Foo"], dtype=object))
def test_init_xym_list(self):
domain = self.create_domain(["x", DiscreteVariable("g", values="MF")],
[DiscreteVariable("y", values="ABC")],
self.metas)
vals = [42, "M", "B", "X", 43, "Foo"]
inst = Instance(domain, vals)
self.assertIsInstance(inst, Instance)
self.assertIs(inst.domain, domain)
self.assertEqual(inst._x.shape, (2, ))
self.assertEqual(inst._y.shape, (1, ))
self.assertEqual(inst._metas.shape, (3, ))
assert_array_equal(inst._x, np.array([42, 0]))
self.assertEqual(inst._y[0], 1)
assert_array_equal(inst._metas, np.array([0, 43, "Foo"], dtype=object))
def test_init_inst(self):
domain = self.create_domain(["x", DiscreteVariable("g", values="MF")],
[DiscreteVariable("y", values="ABC")],
self.metas)
vals = [42, "M", "B", "X", 43, "Foo"]
inst = Instance(domain, vals)
inst2 = Instance(domain, inst)
assert_array_equal(inst2._x, np.array([42, 0]))
self.assertEqual(inst2._y[0], 1)
assert_array_equal(inst2._metas, np.array([0, 43, "Foo"], dtype=object))
domain2 = self.create_domain(["z", domain[1], self.metas[1]],
domain.class_vars,
[self.metas[0], "w", domain[0]])
inst2 = Instance(domain2, inst)
with warnings.catch_warnings():
warnings.simplefilter("ignore", FutureWarning)
assert_array_equal(inst2._x, np.array([Unknown, 0, 43]))
self.assertEqual(inst2._y[0], 1)
assert_array_equal(inst2._metas, np.array([0, Unknown, 42],
dtype=object))
def test_get_item(self):
domain = self.create_domain(["x", DiscreteVariable("g", values="MF")],
[DiscreteVariable("y", values="ABC")],
self.metas)
vals = [42, "M", "B", "X", 43, "Foo"]
inst = Instance(domain, vals)
val = inst[0]
self.assertIsInstance(val, Value)
self.assertEqual(inst[0], 42)
self.assertEqual(inst["x"], 42)
self.assertEqual(inst[domain[0]], 42)
val = inst[1]
self.assertIsInstance(val, Value)
self.assertEqual(inst[1], "M")
self.assertEqual(inst["g"], "M")
self.assertEqual(inst[domain[1]], "M")
val = inst[2]
self.assertIsInstance(val, Value)
self.assertEqual(inst[2], "B")
self.assertEqual(inst["y"], "B")
self.assertEqual(inst[domain.class_var], "B")
val = inst[-2]
self.assertIsInstance(val, Value)
self.assertEqual(inst[-2], 43)
self.assertEqual(inst["Meta 2"], 43)
self.assertEqual(inst[self.metas[1]], 43)
with self.assertRaises(ValueError):
inst["asdf"] = 42
with self.assertRaises(ValueError):
inst[ContinuousVariable("asdf")] = 42
def test_set_item(self):
domain = self.create_domain(["x", DiscreteVariable("g", values="MF")],
[DiscreteVariable("y", values="ABC")],
self.metas)
vals = [42, "M", "B", "X", 43, "Foo"]
inst = Instance(domain, vals)
inst[0] = 43
self.assertEqual(inst[0], 43)
inst["x"] = 44
self.assertEqual(inst[0], 44)
inst[domain[0]] = 45
self.assertEqual(inst[0], 45)
inst[1] = "F"
self.assertEqual(inst[1], "F")
inst["g"] = "M"
self.assertEqual(inst[1], "M")
with self.assertRaises(ValueError):
inst[1] = "N"
with self.assertRaises(ValueError):
inst["asdf"] = 42
inst[2] = "C"
self.assertEqual(inst[2], "C")
inst["y"] = "A"
self.assertEqual(inst[2], "A")
inst[domain.class_var] = "B"
self.assertEqual(inst[2], "B")
inst[-1] = "Y"
self.assertEqual(inst[-1], "Y")
inst["Meta 1"] = "Z"
self.assertEqual(inst[-1], "Z")
inst[domain.metas[0]] = "X"
self.assertEqual(inst[-1], "X")
def test_str(self):
domain = self.create_domain(["x", DiscreteVariable("g", values="MF")])
inst = Instance(domain, [42, 0])
self.assertEqual(str(inst), "[42.000, M]")
domain = self.create_domain(["x", DiscreteVariable("g", values="MF")],
[DiscreteVariable("y", values="ABC")])
inst = Instance(domain, [42, "M", "B"])
self.assertEqual(str(inst), "[42.000, M | B]")
domain = self.create_domain(["x", DiscreteVariable("g", values="MF")],
[DiscreteVariable("y", values="ABC")],
self.metas)
inst = Instance(domain, [42, "M", "B", "X", 43, "Foo"])
self.assertEqual(str(inst), "[42.000, M | B] {X, 43.000, Foo}")
domain = self.create_domain([],
[DiscreteVariable("y", values="ABC")],
self.metas)
inst = Instance(domain, ["B", "X", 43, "Foo"])
self.assertEqual(str(inst), "[ | B] {X, 43.000, Foo}")
domain = self.create_domain([],
[],
self.metas)
inst = Instance(domain, ["X", 43, "Foo"])
self.assertEqual(str(inst), "[] {X, 43.000, Foo}")
domain = self.create_domain(self.attributes)
inst = Instance(domain, range(len(self.attributes)))
self.assertEqual(
str(inst),
"[{}]".format(", ".join("{:.3f}".format(x)
for x in range(len(self.attributes)))))
for attr in domain:
attr.number_of_decimals = 0
self.assertEqual(
str(inst),
"[{}]".format(", ".join("{}".format(x)
for x in range(len(self.attributes)))))
def test_repr(self):
domain = self.create_domain(self.attributes)
inst = Instance(domain, range(len(self.attributes)))
self.assertEqual(repr(inst), "[0.000, 1.000, 2.000, 3.000, 4.000, ...]")
for attr in domain:
attr.number_of_decimals = 0
self.assertEqual(repr(inst), "[0, 1, 2, 3, 4, ...]")
def test_eq(self):
domain = self.create_domain(["x", DiscreteVariable("g", values="MF")],
[DiscreteVariable("y", values="ABC")],
self.metas)
vals = [42, "M", "B", "X", 43, "Foo"]
inst = Instance(domain, vals)
inst2 = Instance(domain, vals)
self.assertTrue(inst == inst2)
self.assertTrue(inst2 == inst)
inst2[0] = 43
self.assertFalse(inst == inst2)
inst2[0] = Unknown
self.assertFalse(inst == inst2)
inst2 = Instance(domain, vals)
inst2[2] = "C"
self.assertFalse(inst == inst2)
inst2 = Instance(domain, vals)
inst2[-1] = "Y"
self.assertFalse(inst == inst2)
inst2 = Instance(domain, vals)
inst2[-2] = "33"
self.assertFalse(inst == inst2)
inst2 = Instance(domain, vals)
inst2[-3] = "Bar"
self.assertFalse(inst == inst2)
class TestSparseTablePandas(TestTablePandas):
features = (
ContinuousVariable(name="c2"),
ContinuousVariable(name="Continuous Feature 2"),
DiscreteVariable(name="d1", values=("0", "1")),
DiscreteVariable(name="Discrete Feature 2",
values=("value1", "value2")),
)
class_vars = (ContinuousVariable(name="Continuous Class"),
DiscreteVariable(name="Discrete Class", values=("m", "f")))
feature_data = (
(1, 0, 0, 0),
(0, 1, 0, 0),
(0, 1, 1, 0),
(0, 0, 0, 0),
(0, 1, 1, 0),
(0, 0, 0, 0),
(0, 1, 1, 0),
)
class_data = (
(1, 0),
(0, 1),
(1, 0),
(0, 1),
(1, 0),
(0, 1),
(1, 0),
)
def setUp(self):
self.domain = Domain(attributes=self.features,
class_vars=self.class_vars)
table = Table.from_numpy(
self.domain,
np.array(self.feature_data),
np.array(self.class_data),
)
self.table = Table.from_numpy(self.domain,
csr_matrix(table.X),
csr_matrix(table.Y),
W=np.array([1, 0, 1, 0, 1, 1, 1]))
def arreq(t1, t2):
if all(sp.issparse(t) for t in (t1, t2)):
return self.assertEqual((t1 != t2).nnz, 0)
else:
return np.array_equal(t1, t2)
self.__arreq__ = arreq
def test_to_dense(self):
df = self.table.X_df
self.assertIsInstance(df, OrangeDataFrame)
ddf = df.sparse.to_dense()
np.testing.assert_array_equal(df.index, ddf.index)
np.testing.assert_array_equal(df.orange_variables,
ddf.orange_variables)
np.testing.assert_array_equal(df.orange_attributes,
ddf.orange_attributes)
np.testing.assert_array_equal(df.orange_role, ddf.orange_role)
np.testing.assert_array_equal(df.orange_weights, ddf.orange_weights)
table = self.table.to_dense()
table2 = ddf.to_orange_table()
np.testing.assert_array_equal(table2.X, table.X)
np.testing.assert_array_equal(table2.ids, table.ids)
np.testing.assert_array_equal(table2.W, table.W)
np.testing.assert_array_equal(table2.attributes, table.attributes)
def moving_transform(data, spec, fixed_wlen=0):
"""
Return data transformed according to spec.
Parameters
----------
data : Timeseries
A table with features to transform.
spec : list of lists
A list of lists [feature:Variable, window_length:int, function:callable].
fixed_wlen : int
If not 0, then window_length in spec is disregarded and this length
is used. Also the windows don't shift by one but instead align
themselves side by side.
Returns
-------
transformed : Timeseries
A table of original data its transformations.
"""
from itertools import chain
from Orange.data import ContinuousVariable, Domain
from orangecontrib.timeseries import Timeseries
from orangecontrib.timeseries.widgets.utils import available_name
from orangecontrib.timeseries.agg_funcs import Cumulative_sum, Cumulative_product
X = []
attrs = []
for var, wlen, func in spec:
col = np.ravel(data[:, var])
if fixed_wlen:
wlen = fixed_wlen
if func in (Cumulative_sum, Cumulative_product):
out = list(
chain.from_iterable(
func(col[i:i + wlen]) for i in range(0, len(col), wlen)))
else:
# In reverse cause lazy brain. Also prefer informative ends, not beginnings as much
col = col[::-1]
out = [
func(col[i:i + wlen])
for i in range(0, len(col), wlen if bool(fixed_wlen) else 1)
]
out = out[::-1]
X.append(out)
template = '{} ({}; {})'.format(
var.name, wlen,
func.__name__.lower().replace('_', ' '))
name = available_name(data.domain, template)
attrs.append(ContinuousVariable(name))
dataX, dataY, dataM = data.X, data.Y, data.metas
if fixed_wlen:
n = len(X[0])
dataX = dataX[::-1][::fixed_wlen][:n][::-1]
dataY = dataY[::-1][::fixed_wlen][:n][::-1]
dataM = dataM[::-1][::fixed_wlen][:n][::-1]
ts = Timeseries(
Domain(data.domain.attributes + tuple(attrs), data.domain.class_vars,
data.domain.metas),
np.column_stack((dataX, np.column_stack(X))) if X else dataX, dataY,
dataM)
ts.time_variable = data.time_variable
return ts
def new_table():
return Table.from_list(Domain([ContinuousVariable("a")]), [[1]])
import warnings
from distutils.version import LooseVersion
from unittest import TestCase
from unittest.mock import Mock
import Orange
from Orange.data import Domain, DiscreteVariable
from Orange.data import ContinuousVariable
from Orange.util import OrangeDeprecationWarning
from Orange.widgets.settings import DomainContextHandler, ContextSetting
from Orange.widgets.utils import vartype
Continuous = 100 + vartype(ContinuousVariable())
Discrete = 100 + vartype(DiscreteVariable())
class TestDomainContextHandler(TestCase):
def setUp(self):
self.domain = Domain(
attributes=[ContinuousVariable('c1'),
DiscreteVariable('d1', values='abc'),
DiscreteVariable('d2', values='def')],
class_vars=[DiscreteVariable('d3', values='ghi')],
metas=[ContinuousVariable('c2'),
DiscreteVariable('d4', values='jkl')]
)
self.args = (self.domain,
{'c1': Continuous - 100, 'd1': Discrete - 100,
'd2': Discrete - 100, 'd3': Discrete - 100},
{'c2': Continuous - 100, 'd4': Discrete - 100, })
self.handler = DomainContextHandler()
def setUp(self):
x = ContinuousVariable("x")
self.desc = owcolor.ContAttrDesc(x)
def _add_regression_out_columns(slot, newmetas, newcolumns):
newmetas.append(ContinuousVariable(name=slot.predictor.name))
newcolumns.append(slot.results.unmapped_predicted.reshape((-1, 1)))
import numpy as np
from AnyQt.QtCore import QMimeData, QPoint, Qt
from AnyQt.QtGui import QDragEnterEvent
from Orange.data import Table, ContinuousVariable, DiscreteVariable, Domain
from Orange.widgets.settings import ContextSetting
from Orange.widgets.utils import vartype
from Orange.widgets.tests.base import WidgetTest
from Orange.widgets.data.owselectcolumns \
import OWSelectAttributes, VariablesListItemModel, \
SelectAttributesDomainContextHandler
from Orange.widgets.data.owrank import OWRank
from Orange.widgets.widget import AttributeList
Continuous = vartype(ContinuousVariable("c"))
Discrete = vartype(DiscreteVariable("d"))
class TestSelectAttributesDomainContextHandler(TestCase):
def setUp(self):
self.domain = Domain(attributes=[
ContinuousVariable('c1'),
DiscreteVariable('d1', values='abc'),
DiscreteVariable('d2', values='def')
],
class_vars=[DiscreteVariable('d3', values='ghi')],
metas=[
ContinuousVariable('c2'),
DiscreteVariable('d4', values='jkl')
])
def seasonal_decompose(data,
model='multiplicative',
period=12,
*,
callback=None):
"""
Return table of decomposition components of original features and
original features seasonally adjusted.
Parameters
----------
data : Timeseries
A table of featres to decompose/adjust.
model : str {'additive', 'multiplicative'}
A decompostition model. See:
https://en.wikipedia.org/wiki/Decomposition_of_time_series
period : int
The period length of season.
callback : callable
Optional callback to call (with no parameters) after each iteration.
Returns
-------
table : Timeseries
Table with columns: original series seasonally adjusted, original
series' seasonal components, trend components, and residual components.
"""
from operator import sub, truediv
from Orange.data import Domain, ContinuousVariable
from orangecontrib.timeseries import Timeseries
from orangecontrib.timeseries.widgets.utils import available_name
import statsmodels.api as sm
def _interp_trend(trend):
first = next(i for i, val in enumerate(trend) if val == val)
last = trend.size - 1 - next(
i for i, val in enumerate(trend[::-1]) if val == val)
d = 3
first_last = min(first + d, last)
last_first = max(first, last - d)
k, n = np.linalg.lstsq(
np.column_stack(
(np.arange(first, first_last), np.ones(first_last - first))),
trend[first:first_last])[0]
trend[:first] = np.arange(0, first) * k + n
k, n = np.linalg.lstsq(
np.column_stack((np.arange(last_first,
last), np.ones(last - last_first))),
trend[last_first:last])[0]
trend[last + 1:] = np.arange(last + 1, trend.size) * k + n
return trend
attrs = []
X = []
recomposition = sub if model == 'additive' else truediv
interp_data = data.interp()
for var in data.domain.variables:
decomposed = sm.tsa.seasonal_decompose(np.ravel(interp_data[:, var]),
model=model,
freq=period)
adjusted = recomposition(decomposed.observed, decomposed.seasonal)
season = decomposed.seasonal
trend = _interp_trend(decomposed.trend)
resid = recomposition(adjusted, trend)
# Re-apply nans
isnan = np.isnan(data[:, var]).ravel()
adjusted[isnan] = np.nan
trend[isnan] = np.nan
resid[isnan] = np.nan
attrs.extend(
ContinuousVariable(
available_name(data.domain, var.name +
' ({})'.format(transform)))
for transform in ('season. adj.', 'seasonal', 'trend', 'residual'))
X.extend((adjusted, season, trend, resid))
if callback:
callback()
ts = Timeseries(Domain(attrs), np.column_stack(X))
return ts
def constr_vars(inds):
if inds:
return [
ContinuousVariable(x.decode("utf-8")) for _, x in sorted(
(ind, name) for name, ind in inds.items())
]
def test_overflow(self):
var = ContinuousVariable("var", number_of_decimals=10)
editor = ContinuousVariableEditor(self.parent, var, -100000, 1,
self.callback)
self.assertLess(editor._n_decimals, 10)
def test_continous(self):
X = ContinuousVariable("X")
self._test_common(X)
def _get_projection_variables(self):
names = get_unique_names(
self.data.domain, self.embedding_variables_names)
return ContinuousVariable(names[0]), ContinuousVariable(names[1])
def read(self):
who = matlab.whosmat(self.filename)
if not who:
raise IOError("Couldn't load matlab file " + self.filename)
else:
ml = matlab.loadmat(self.filename, chars_as_strings=True)
ml = {a: b for a, b in ml.items() if isinstance(b, np.ndarray)}
def num_elements(array):
return reduce(lambda x, y: x * y, array.shape, 1)
def find_biggest(arrays):
sizes = []
for n, c in arrays.items():
sizes.append((num_elements(c), n))
return max(sizes)[1]
def is_string_array(array):
return issubclass(array.dtype.type, np.str_)
def is_number_array(array):
return issubclass(array.dtype.type, numbers.Number)
numeric = {n: a for n, a in ml.items() if is_number_array(a)}
# X is the biggest numeric array
X = ml.pop(find_biggest(numeric)) if numeric else None
# find an array with compatible shapes
attributes = []
if X is not None:
name_array = None
for name in sorted(ml):
con = ml[name]
if con.shape in [(X.shape[1], ), (1, X.shape[1])]:
name_array = name
break
names = ml.pop(name_array).ravel() if name_array else range(
X.shape[1])
names = [str(a).rstrip()
for a in names] # remove matlab char padding
attributes = [ContinuousVariable.make(a) for a in names]
meta_names = []
metas = []
meta_size = None
if X is None:
counts = defaultdict(list)
for name, con in ml.items():
counts[len(con)].append(name)
if counts:
meta_size = max(counts.keys(),
key=lambda x: len(counts[x]))
else:
meta_size = len(X)
if meta_size:
for name, con in ml.items():
if len(con) == meta_size:
meta_names.append(name)
meta_data = []
for m in sorted(meta_names):
f = ml[m]
if is_string_array(f) and len(
f.shape) == 1: # 1D string arrays
metas.append(StringVariable.make(m))
f = np.array([a.rstrip()
for a in f]) # remove matlab char padding
f.resize(meta_size, 1)
meta_data.append(f)
elif is_number_array(f) and len(f.shape) == 2:
if f.shape[1] == 1:
names = [m]
else:
names = [
m + "_" + str(i + 1) for i in range(f.shape[1])
]
for n in names:
metas.append(ContinuousVariable.make(n))
meta_data.append(f)
meta_data = np.hstack(tuple(meta_data)) if meta_data else None
domain = Domain(attributes, metas=metas)
if X is None:
X = np.zeros((meta_size, 0))
return Orange.data.Table.from_numpy(domain,
X,
Y=None,
metas=meta_data)
def _add_similarity(data, dist):
dist = np.min(dist, axis=1)[:, None]
metas = data.domain.metas + (ContinuousVariable("similarity"), )
domain = Domain(data.domain.attributes, data.domain.class_vars, metas)
data_metas = np.hstack((data.metas, 100 * (1 - dist / np.max(dist))))
return Table(domain, data.X, data.Y, data_metas)
def read(self):
try:
import opusFC
except ImportError:
raise RuntimeError(self._OPUS_WARNING)
if self.sheet:
db = self.sheet
else:
db = self.sheets[0]
db = tuple(db.split(" "))
dim = db[1]
try:
data = opusFC.getOpusData(self.filename, db)
except Exception:
raise IOError("Couldn't load spectrum from " + self.filename)
attrs, clses, metas = [], [], []
attrs = [
ContinuousVariable.make(repr(data.x[i]))
for i in range(data.x.shape[0])
]
y_data = None
meta_data = None
if type(data) == opusFC.MultiRegionDataReturn:
y_data = []
meta_data = []
metas.extend([
ContinuousVariable.make('map_x'),
ContinuousVariable.make('map_y'),
StringVariable.make('map_region'),
TimeVariable.make('start_time')
])
for region in data.regions:
y_data.append(region.spectra)
mapX = region.mapX
mapY = region.mapY
map_region = np.full_like(mapX, region.title, dtype=object)
start_time = region.start_time
meta_region = np.column_stack(
(mapX, mapY, map_region, start_time))
meta_data.append(meta_region.astype(object))
y_data = np.vstack(y_data)
meta_data = np.vstack(meta_data)
elif type(data) == opusFC.MultiRegionTRCDataReturn:
y_data = []
meta_data = []
metas.extend([
ContinuousVariable.make('map_x'),
ContinuousVariable.make('map_y'),
StringVariable.make('map_region')
])
attrs = [
ContinuousVariable.make(repr(data.labels[i]))
for i in range(len(data.labels))
]
for region in data.regions:
y_data.append(region.spectra)
mapX = region.mapX
mapY = region.mapY
map_region = np.full_like(mapX, region.title, dtype=object)
meta_region = np.column_stack((mapX, mapY, map_region))
meta_data.append(meta_region.astype(object))
y_data = np.vstack(y_data)
meta_data = np.vstack(meta_data)
elif type(data) == opusFC.ImageDataReturn:
metas.extend([
ContinuousVariable.make('map_x'),
ContinuousVariable.make('map_y')
])
data_3D = data.spectra
for i in np.ndindex(data_3D.shape[:1]):
map_y = np.full_like(data.mapX, data.mapY[i])
coord = np.column_stack((data.mapX, map_y))
if y_data is None:
y_data = data_3D[i]
meta_data = coord.astype(object)
else:
y_data = np.vstack((y_data, data_3D[i]))
meta_data = np.vstack((meta_data, coord))
elif type(data) == opusFC.ImageTRCDataReturn:
metas.extend([
ContinuousVariable.make('map_x'),
ContinuousVariable.make('map_y')
])
attrs = [
ContinuousVariable.make(repr(data.labels[i]))
for i in range(len(data.labels))
]
data_3D = data.traces
for i in np.ndindex(data_3D.shape[:1]):
map_y = np.full_like(data.mapX, data.mapY[i])
coord = np.column_stack((data.mapX, map_y))
if y_data is None:
y_data = data_3D[i]
meta_data = coord.astype(object)
else:
y_data = np.vstack((y_data, data_3D[i]))
meta_data = np.vstack((meta_data, coord))
elif type(data) == opusFC.TimeResolvedTRCDataReturn:
y_data = data.traces
elif type(data) == opusFC.TimeResolvedDataReturn:
metas.extend([ContinuousVariable.make('z')])
y_data = data.spectra
meta_data = data.z
elif type(data) == opusFC.SingleDataReturn:
y_data = data.y[None, :]
else:
raise ValueError(
"Empty or unsupported opusFC DataReturn object: " + type(data))
import_params = ['SRT', 'SNM']
for param_key in import_params:
try:
param = data.parameters[param_key]
except KeyError:
pass # TODO should notify user?
else:
try:
param_name = opusFC.paramDict[param_key]
except KeyError:
param_name = param_key
if param_key == 'SRT':
var = TimeVariable.make(param_name)
elif type(param) is float:
var = ContinuousVariable.make(param_name)
elif type(param) is str:
var = StringVariable.make(param_name)
else:
raise ValueError #Found a type to handle
metas.extend([var])
params = np.full((y_data.shape[0], ), param,
np.array(param).dtype)
if meta_data is not None:
# NB dtype default will be np.array(fill_value).dtype in future
meta_data = np.column_stack(
(meta_data, params.astype(object)))
else:
meta_data = params
domain = Orange.data.Domain(attrs, clses, metas)
meta_data = np.atleast_2d(meta_data)
table = Orange.data.Table.from_numpy(domain,
y_data.astype(float, order='C'),
metas=meta_data)
return table
def test_adjust_decimals(self):
a = ContinuousVariable("a")
self.assertEqual(a.str_val(4.65432), "4.65432")
a.val_from_str_add("5")
self.assertEqual(a.str_val(4.65432), "5")
a.val_from_str_add(" 5.12 ")
self.assertEqual(a.str_val(4.65432), "4.65")
a.val_from_str_add("5.1234")
self.assertEqual(a.str_val(4.65432), "4.6543")
import unittest
import datetime
from collections import namedtuple
import numpy as np
from Orange.widgets.utils.state_summary import format_summary_details
from Orange.data import Table, Domain, StringVariable, ContinuousVariable, \
DiscreteVariable, TimeVariable
VarDataPair = namedtuple('VarDataPair', ['variable', 'data'])
# Continuous variable variations
continuous_full = VarDataPair(
ContinuousVariable('continuous_full'),
np.array([0, 1, 2, 3, 4], dtype=float),
)
continuous_missing = VarDataPair(
ContinuousVariable('continuous_missing'),
np.array([0, 1, 2, np.nan, 4], dtype=float),
)
# Unordered discrete variable variations
rgb_full = VarDataPair(
DiscreteVariable('rgb_full', values=['r', 'g', 'b']),
np.array([0, 1, 1, 1, 2], dtype=float),
)
rgb_missing = VarDataPair(
DiscreteVariable('rgb_missing', values=['r', 'g', 'b']),
np.array([0, 1, 1, np.nan, 2], dtype=float),
)
def test_value_changes_yields_nothing_for_continuous_variables(self):
v1, v2 = ContinuousVariable("a"), ContinuousVariable("b")
self.assertEmpty(self.report._value_changes(v1, v2))
def test_label_changes_yields_nothing_for_no_change(self):
v1 = ContinuousVariable("a")
v1.attributes["a"] = "b"
self.assertEmpty(self.report._value_changes(v1, v1))
def calculateFFT(self):
"""
Calculate FFT from input interferogram(s).
This is a handler method for
- bad data / data shape
- splitting the array in the case of two interferogram sweeps per dataset.
- multiple input interferograms
Based on mertz module by Eric Peach, 2014
"""
wavenumbers = None
spectra = []
phases = []
zpd_fwd = []
zpd_back = []
# Reset info, error and warning dialogs
self.Error.clear()
self.Warning.clear()
fft_single = irfft.IRFFT(
dx=self.dx,
apod_func=self.apod_func,
zff=2**self.zff,
phase_res=self.phase_resolution if self.phase_res_limit else None,
phase_corr=self.phase_corr,
peak_search=self.peak_search,
)
ifg_data = self.data.X
stored_phase = self.stored_phase
stored_zpd_fwd, stored_zpd_back = None, None
# Only use first row stored phase for now
if stored_phase is not None:
stored_phase = stored_phase[0]
try:
stored_zpd_fwd = int(stored_phase["zpd_fwd"].value)
except ValueError:
stored_zpd_fwd = None
try:
stored_zpd_back = int(stored_phase["zpd_back"].value)
except ValueError:
stored_zpd_back = None
stored_phase = stored_phase.x # lowercase x for RowInstance
# Use manual zpd value(s) if specified and enable batch processing
elif not self.peak_search_enable:
stored_zpd_fwd = self.zpd1
stored_zpd_back = self.zpd2
chunks = max(1, len(self.data) // CHUNK_SIZE)
ifg_data = np.array_split(self.data.X, chunks, axis=0)
fft_single = irfft.MultiIRFFT(
dx=self.dx,
apod_func=self.apod_func,
zff=2**self.zff,
phase_res=self.phase_resolution
if self.phase_res_limit else None,
phase_corr=self.phase_corr,
peak_search=self.peak_search,
)
if self.reader == 'NeaReaderGSF':
fft_single = irfft.ComplexFFT(
dx=self.dx,
apod_func=self.apod_func,
zff=2**self.zff,
phase_res=self.phase_resolution
if self.phase_res_limit else None,
phase_corr=self.phase_corr,
peak_search=self.peak_search,
)
full_data = self.data.X[::2] * np.exp(self.data.X[1::2] * 1j)
for row in full_data:
spectrum_out, phase_out, wavenumbers = fft_single(
row, zpd=stored_zpd_fwd)
spectra.append(spectrum_out)
spectra.append(phase_out)
spectra = np.vstack(spectra)
if self.limit_output is True:
wavenumbers, spectra = self.limit_range(wavenumbers, spectra)
self.spectra_table = build_spec_table(wavenumbers,
spectra,
additional_table=self.data)
self.Outputs.spectra.send(self.spectra_table)
return
for row in ifg_data:
if self.sweeps in [2, 3]:
# split double-sweep for forward/backward
# forward: 2-2 = 0 , backward: 3-2 = 1
try:
row = np.hsplit(row, 2)[self.sweeps - 2]
except ValueError as e:
self.Error.ifg_split_error(e)
return
if self.sweeps in [0, 2, 3]:
try:
spectrum_out, phase_out, wavenumbers = fft_single(
row, zpd=stored_zpd_fwd, phase=stored_phase)
zpd_fwd.append(fft_single.zpd)
except ValueError as e:
self.Error.fft_error(e)
return
elif self.sweeps == 1:
# Double sweep interferogram is split, solved independently and the
# two results are averaged.
try:
data = np.hsplit(row, 2)
except ValueError as e:
self.Error.ifg_split_error(e)
return
fwd = data[0]
# Reverse backward sweep to match fwd sweep
back = data[1][::-1]
# Calculate spectrum for both forward and backward sweeps
try:
spectrum_fwd, phase_fwd, wavenumbers = fft_single(
fwd, zpd=stored_zpd_fwd, phase=stored_phase)
zpd_fwd.append(fft_single.zpd)
spectrum_back, phase_back, wavenumbers = fft_single(
back, zpd=stored_zpd_back, phase=stored_phase)
zpd_back.append(fft_single.zpd)
except ValueError as e:
self.Error.fft_error(e)
return
# Calculate the average of the forward and backward sweeps
spectrum_out = np.mean(np.array([spectrum_fwd, spectrum_back]),
axis=0)
phase_out = np.mean(np.array([phase_fwd, phase_back]), axis=0)
else:
return
spectra.append(spectrum_out)
phases.append(phase_out)
spectra = np.vstack(spectra)
phases = np.vstack(phases)
self.phases_table = build_spec_table(wavenumbers,
phases,
additional_table=self.data)
if not self.peak_search_enable:
# All zpd values are equal by definition
zpd_fwd = zpd_fwd[:1]
self.phases_table = add_meta_to_table(
self.phases_table, ContinuousVariable.make("zpd_fwd"), zpd_fwd)
if zpd_back:
if not self.peak_search_enable:
zpd_back = zpd_back[:1]
self.phases_table = add_meta_to_table(
self.phases_table, ContinuousVariable.make("zpd_back"),
zpd_back)
if self.limit_output is True:
wavenumbers, spectra = self.limit_range(wavenumbers, spectra)
self.spectra_table = build_spec_table(wavenumbers,
spectra,
additional_table=self.data)
self.Outputs.spectra.send(self.spectra_table)
self.Outputs.phases.send(self.phases_table)
def test_palette(self):
palette = ContinuousPalettes["rainbow_bgyr_35_85_c73"]
a = ContinuousVariable("a")
a.palette = palette
self.assertIs(a.palette, palette)
a = ContinuousVariable("a")
a.attributes["palette"] = palette.name
self.assertIs(a.palette, palette)
a = ContinuousVariable("a")
self.assertIs(a.palette, DefaultContinuousPalette)
with patch.object(ContinuousPalette, "from_colors") as from_colors:
a = ContinuousVariable("a")
a.attributes["colors"] = ('#0a0b0c', '#0d0e0f', False)
palette = a.palette
from_colors.assert_called_with((10, 11, 12), (13, 14, 15), False)
self.assertIs(palette, from_colors.return_value)
with patch.object(ContinuousPalette, "from_colors") as from_colors:
a = ContinuousVariable("a")
a.colors = (10, 11, 12), (13, 14, 15), False
palette = a.palette
from_colors.assert_called_with((10, 11, 12), (13, 14, 15), False)
self.assertIs(palette, from_colors.return_value)
