def test():
with open(data_path('lenses.txt')) as f:
lenses = [x.strip().split('\t') for x in f]
lenses_labels = ['age', 'prescript', 'astigmatic', 'tear rate']
tree = create_tree(lenses, lenses_labels)
print tree
create_plot(tree, name='lenses tree')
def paint(self, evt):
dc = wx.PaintDC(self)
# background
dc.SetBackground(wx.Brush("#e2e2e2"))
dc.Clear()
# shadow
w, h = self.GetSize()
dc.GradientFillLinear((0, h - 10, w, h), '#4d7685', "#e2e2e2",
wx.NORTH)
# title
dc.SetTextForeground('#4d7685')
dc.SetFont(wx.Font(66, wx.FONTFAMILY_SWISS, wx.NORMAL, wx.LIGHT,
False))
dc.DrawText("FreshPass", 65, 8)
# icon
with open(data_path(
'resources/icon.iconset/icon_128x128.png')) as icon_file:
image = wx.ImageFromStream(icon_file, wx.BITMAP_TYPE_PNG)
image = image.Scale(64, 64, wx.IMAGE_QUALITY_HIGH)
bitmap = wx.BitmapFromImage(image)
if "gtk1" in wx.PlatformInfo:
# via wxPython ImageAlpha demo -- fake alpha for wxGTK (gtk+ 1.2)
img = bitmap.ConvertToImage()
img.ConvertAlphaToMask(220)
bitmap = img.ConvertToBitmap()
dc.DrawBitmap(bitmap, 2, 5, True)
def paint(self, evt):
dc = wx.PaintDC(self)
# background
dc.SetBackground(wx.Brush("#e2e2e2"))
dc.Clear()
# shadow
w, h = self.GetSize()
dc.GradientFillLinear((0, h-10, w, h), '#4d7685', "#e2e2e2", wx.NORTH)
# title
dc.SetTextForeground('#4d7685')
dc.SetFont(wx.Font(66, wx.FONTFAMILY_SWISS, wx.NORMAL, wx.LIGHT, False))
dc.DrawText("FreshPass",
65, 8)
# icon
with open(data_path('resources/icon.iconset/icon_128x128.png')) as icon_file:
image = wx.ImageFromStream(icon_file, wx.BITMAP_TYPE_PNG)
image = image.Scale(64, 64, wx.IMAGE_QUALITY_HIGH)
bitmap = wx.BitmapFromImage(image)
if "gtk1" in wx.PlatformInfo:
# via wxPython ImageAlpha demo -- fake alpha for wxGTK (gtk+ 1.2)
img = bitmap.ConvertToImage()
img.ConvertAlphaToMask(220)
bitmap = img.ConvertToBitmap()
dc.DrawBitmap(bitmap, 2, 5, True)
def add_controls(self):
w, h = GlobalState.controller.frame.GetSize()
gif = wx.animate.GIFAnimationCtrl(self,
-1,
data_path('resources/loader.gif'),
pos=(w / 2 - 16 - 70, h / 2 - 16))
gif.GetPlayer().UseBackgroundColour(True)
gif.Play()
def load_rules(cls):
# load yaml files from rules/ dir
rules = []
for subdir, dirs, files in os.walk(data_path('rules')):
for file in files:
if file.endswith('.yaml'):
with open(os.path.join(subdir, file), 'rb') as f:
rules.append(Rule(**dict(yaml.load(f), file_name=file)))
return rules
def load_rules(cls):
# load yaml files from rules/ dir
rules = []
for subdir, dirs, files in os.walk(data_path('rules')):
for file in files:
if file.endswith('.yaml'):
with open(os.path.join(subdir, file), 'rb') as f:
rules.append(
Rule(**dict(yaml.load(f), file_name=file)))
return rules
def over_files(dir_relative_path):
dirpath = data_path(dir_relative_path)
filenames = listdir(dirpath)
m = len(filenames)
def generator():
for i in xrange(m):
filename = filenames[i]
name, ext = path.splitext(filename)
class_num = int(name.split('_')[0])
data = import_image(path.join(dirpath, filename))
yield i, class_num, data
return m, generator()
def get_browser(javascript_enabled=True):
desired_capabilities = dict(DesiredCapabilities.PHANTOMJS)
# use Chrome user agent so sites serve the same content we see in Selenium IDE
desired_capabilities["phantomjs.page.settings.userAgent"] = "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/36.0.1985.67 Safari/537.36"
desired_capabilities["phantomjs.page.settings.javascriptEnabled"] = javascript_enabled
driver = webdriver.PhantomJS(
executable_path=data_path('contrib/phantomjs'),
desired_capabilities=desired_capabilities,
service_log_path='phantomjs.log' if GlobalState.options.debug else os.devnull,
)
driver.implicitly_wait(get_default_timeout())
driver.set_window_size(*WINDOW_SIZE)
# make sure that phantomjs process is terminated when we exit
GlobalState.cleanup_message.send({'action':'kill','pid':driver.service.process.pid})
return driver
def classify_person():
filepath = data_path('datingTestSet2.txt')
result_list = ['not at all', 'in small doses', 'in large doses']
play_games = float(raw_input(
'percentage of time spent playing video games? '
))
ff_miles = float(raw_input(
'frequent flier miles earned per year? '
))
ice_cream = float(raw_input(
'liters of ice cream consumed per year? '
))
data_set, labels = import_dataset(filepath)
norm_data_set, ranges, min_vals = normalize(data_set)
data = array([ff_miles, play_games, ice_cream])
norm_data = (data - min_vals) / ranges
result = classify(norm_data, norm_data_set, labels, 7)
print 'you will probably like this person: {}'.format(
result_list[result - 1]
)
def get_browser(javascript_enabled=True):
desired_capabilities = dict(DesiredCapabilities.PHANTOMJS)
# use Chrome user agent so sites serve the same content we see in Selenium IDE
desired_capabilities[
"phantomjs.page.settings.userAgent"] = "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/36.0.1985.67 Safari/537.36"
desired_capabilities[
"phantomjs.page.settings.javascriptEnabled"] = javascript_enabled
driver = webdriver.PhantomJS(
executable_path=data_path('contrib/phantomjs'),
desired_capabilities=desired_capabilities,
service_log_path='phantomjs.log'
if GlobalState.options.debug else os.devnull,
)
driver.implicitly_wait(get_default_timeout())
driver.set_window_size(*WINDOW_SIZE)
# make sure that phantomjs process is terminated when we exit
GlobalState.cleanup_message.send({
'action': 'kill',
'pid': driver.service.process.pid
})
return driver
def test_dating_set():
ho_ratio = 0.1
filepath = data_path('datingTestSet2.txt')
data_set, labels = import_dataset(filepath)
norm_data_set, ranges, min_vals = normalize(data_set)
m = norm_data_set.shape[0]
num_test = int(m * ho_ratio)
error_count = 0.0
for i in range(num_test):
classifier_result = classify(
norm_data_set[i, :],
norm_data_set[num_test:m, :],
labels[num_test:m],
7
)
if classifier_result != labels[i]:
error_count += 1.0
print 'the total error rate is: %f' % (error_count / num_test)
colors = []
sizes = 15.0 * array(labels)
for label in labels:
if label == 1:
color = 'red'
elif label == 2:
color = 'green'
elif label == 3:
color = 'blue'
else:
color = 'gray'
colors.append(color)
_fig = plt.figure()
_ax = _fig.add_subplot(111)
type1 = _ax.scatter([-10], [-10], s=15, c='red')
type2 = _ax.scatter([-10], [-15], s=30, c='green')
type3 = _ax.scatter([-10], [-20], s=45, c='blue')
fig = plt.figure()
ax = fig.add_subplot(111)
ax.scatter(data_set[:, 0], data_set[:, 1], c=colors, s=sizes)
ax.set_xlabel('Frequent Flyier Miles Earned Per Year')
ax.set_ylabel('Percentage of Time Spent Playing Video Games')
ax.legend(
[type1, type2, type3],
['Did Not Like', 'Liked in Small Doses', 'Liked in Large Doses'],
loc=2
)
ax.grid(True)
fig.savefig(data_out_path('games_vs_miles.png'))
fig = plt.figure()
ax = fig.add_subplot(111)
ax.scatter(data_set[:, 1], data_set[:, 2], c=colors, s=sizes)
ax.set_xlabel('Percentage of Time Spent Playing Video Games')
ax.set_ylabel('Liters of Ice Cream Consumed Per Week')
ax.legend(
[type1, type2, type3],
['Did Not Like', 'Liked in Small Doses', 'Liked in Large Doses'],
loc=4
)
ax.grid(True)
fig.savefig(data_out_path('ice_cream_vs_games.png'))
def out_path(table):
return helpers.data_path("out_" + table + ".csv")
def in_path(table):
return helpers.data_path("in_" + table + ".csv")