def make_merging_data(num_feat_files, suffix, numeric_ids):
num_examples = 500
num_feats_per_file = 17
np.random.seed(1234567890)
merge_dir = join(_my_dir, 'train', 'test_merging')
if not exists(merge_dir):
os.makedirs(merge_dir)
# Create lists we will write files from
ids = []
features = []
labels = []
for j in range(num_examples):
y = "dog" if j % 2 == 0 else "cat"
ex_id = "{}{}".format(y, j) if not numeric_ids else j
x = {
"f{:03d}".format(feat_num): np.random.randint(0, 4)
for feat_num in range(num_feat_files * num_feats_per_file)
}
x = OrderedDict(sorted(x.items(), key=lambda t: t[0]))
ids.append(ex_id)
labels.append(y)
features.append(x)
# Unmerged
subset_dict = {}
for i in range(num_feat_files):
feat_num = i * num_feats_per_file
subset_dict['{}'.format(i)] = [
"f{:03d}".format(feat_num + j) for j in range(num_feats_per_file)
]
train_path = join(merge_dir, suffix)
train_fs = FeatureSet('train', ids, labels=labels, features=features)
Writer.for_path(train_path, train_fs, subsets=subset_dict).write()
# Merged
train_path = join(merge_dir, 'all{}'.format(suffix))
Writer.for_path(train_path, train_fs).write()
def make_merging_data(num_feat_files, suffix, numeric_ids):
num_examples = 500
num_feats_per_file = 17
np.random.seed(1234567890)
merge_dir = join(_my_dir, 'train', 'test_merging')
if not exists(merge_dir):
os.makedirs(merge_dir)
# Create lists we will write files from
ids = []
features = []
labels = []
for j in range(num_examples):
y = "dog" if j % 2 == 0 else "cat"
ex_id = "{}{}".format(y, j) if not numeric_ids else j
x = {"f{:03d}".format(feat_num): np.random.randint(0, 4) for feat_num
in range(num_feat_files * num_feats_per_file)}
x = OrderedDict(sorted(x.items(), key=lambda t: t[0]))
ids.append(ex_id)
labels.append(y)
features.append(x)
# Unmerged
subset_dict = {}
for i in range(num_feat_files):
feat_num = i * num_feats_per_file
subset_dict['{}'.format(i)] = ["f{:03d}".format(feat_num + j) for j in
range(num_feats_per_file)]
train_path = join(merge_dir, suffix)
train_fs = FeatureSet('train', ids, labels=labels, features=features)
Writer.for_path(train_path, train_fs, subsets=subset_dict).write()
# Merged
train_path = join(merge_dir, 'all{}'.format(suffix))
Writer.for_path(train_path, train_fs).write()
def main():
"""
Create directories and split CSV files into subsets.
"""
logging.basicConfig(format=('%(asctime)s - %(name)s - %(levelname)s - ' +
'%(message)s'),
level=logging.INFO)
logger = logging.getLogger(__name__)
# Create dictionary of subsets to use for creating split feature files
subset_dict = {
'vitals': ['Sex', 'Age'],
'socioeconomic': ['Pclass', 'Fare'],
'family': ['SibSp', 'Parch'],
'misc': ['Embarked']
}
features_to_keep = list(chain(*subset_dict.values()))
# Create directories to store files
if not os.path.exists('titanic/train'):
logger.info('Creating titanic/train directory')
os.makedirs('titanic/train')
if not os.path.exists('titanic/dev'):
logger.info('Creating titanic/dev directory')
os.makedirs('titanic/dev')
if not os.path.exists('titanic/train+dev'):
logger.info('Creating titanic/train+dev directory')
os.makedirs('titanic/train+dev')
if not os.path.exists('titanic/test'):
logger.info('Creating titanic/test directory')
os.makedirs('titanic/test')
usecols_train = features_to_keep + ['PassengerId', 'Survived']
usecols_test = features_to_keep + ['PassengerId']
# Read and write training FeatureSet
train_fs = Reader.for_path('titanic/train.csv',
label_col='Survived',
id_col='PassengerId',
drop_blanks=True,
pandas_kwargs={
'usecols': usecols_train
},
quiet=False,
sparse=False).read()
train_fs.filter(features=features_to_keep)
num_train_dev = len(train_fs)
num_train = int((num_train_dev / 5) * 4)
writer = Writer.for_path('titanic/train/.csv',
train_fs[:num_train],
id_col='PassengerId',
label_col='Survived',
quiet=False,
subsets=subset_dict)
writer.write()
# Write train+dev set for training model to use to generate predictions on
# test
writer = Writer.for_path('titanic/train+dev/.csv',
train_fs,
label_col='Survived',
id_col='PassengerId',
quiet=False,
subsets=subset_dict)
writer.write()
# Write dev FeatureSet
writer = Writer.for_path('titanic/dev/.csv',
train_fs[num_train:],
label_col='Survived',
id_col='PassengerId',
quiet=False,
subsets=subset_dict)
writer.write()
# Read and write test FeatureSet
test_fs = Reader.for_path('titanic/test.csv',
label_col='Survived',
drop_blanks=True,
pandas_kwargs={
'usecols': usecols_test
},
quiet=False,
sparse=False).read()
test_fs.filter(features=features_to_keep)
num_test = len(test_fs)
test_fs.ids = list(range(num_train_dev + 1, num_test + num_train_dev + 1))
writer = Writer.for_path('titanic/test/.csv',
test_fs,
id_col='PassengerId',
quiet=False,
subsets=subset_dict)
writer.write()
def make_conversion_data(num_feat_files,
from_suffix,
to_suffix,
with_labels=True):
num_examples = 500
num_feats_per_file = 7
np.random.seed(1234567890)
convert_dir = join(_my_dir, 'train', 'test_conversion')
if not exists(convert_dir):
os.makedirs(convert_dir)
# Create lists we will write files from
ids = []
features = []
labels = [] if with_labels else None
for j in range(num_examples):
y = "dog" if j % 2 == 0 else "cat"
ex_id = "{}{}".format(y, j)
# if we are not using labels, we do not want zero-valued features
# because it may be the case that some subset of features end up
# being all 0 and if this subset ends up being written out to a file
# below, then for some formats (e.g., megam) nothing will get written
# out which can cause issues when reading this file
lowest_feature_value = 0 if with_labels else 1
x = {
"f{:03d}".format(feat_num):
np.random.randint(lowest_feature_value, 4 + lowest_feature_value)
for feat_num in range(num_feat_files * num_feats_per_file)
}
x = OrderedDict(sorted(x.items(), key=lambda t: t[0]))
ids.append(ex_id)
if with_labels:
labels.append(y)
features.append(x)
# Create vectorizers/maps for libsvm subset writing
feat_vectorizer = DictVectorizer()
feat_vectorizer.fit(features)
if with_labels:
label_map = {
label: num
for num, label in enumerate(
sorted({
label
for label in labels if not isinstance(label, (int, float))
}))
}
# Add fake item to vectorizer for None
label_map[None] = '00000'
else:
label_map = None
# get the feature name prefix
feature_name_prefix = '{}_to_{}'.format(from_suffix.lstrip('.'),
to_suffix.lstrip('.'))
# use '_unlabeled' as part of any file names when not using labels
with_labels_part = '' if with_labels else '_unlabeled'
# Write out unmerged features in the `from_suffix` file format
for i in range(num_feat_files):
train_path = join(
convert_dir, '{}_{}{}{}'.format(feature_name_prefix, i,
with_labels_part, from_suffix))
sub_features = []
for example_num in range(num_examples):
feat_num = i * num_feats_per_file
x = {
"f{:03d}".format(feat_num + j):
features[example_num]["f{:03d}".format(feat_num + j)]
for j in range(num_feats_per_file)
}
sub_features.append(x)
train_fs = FeatureSet('sub_train',
ids,
labels=labels,
features=sub_features,
vectorizer=feat_vectorizer)
if from_suffix == '.libsvm':
Writer.for_path(train_path, train_fs, label_map=label_map).write()
elif from_suffix in ['.arff', '.csv', '.tsv']:
label_col = 'y' if with_labels else None
Writer.for_path(train_path, train_fs, label_col=label_col).write()
else:
Writer.for_path(train_path, train_fs).write()
# Write out the merged features in the `to_suffix` file format
train_path = join(
convert_dir, '{}{}_all{}'.format(feature_name_prefix, with_labels_part,
to_suffix))
train_fs = FeatureSet('train',
ids,
labels=labels,
features=features,
vectorizer=feat_vectorizer)
# we need to do this to get around the FeatureSet using NaNs
# instead of None when there are no labels which causes problems
# later when comparing featuresets
if not with_labels:
train_fs.labels = [None] * len(train_fs.labels)
if to_suffix == '.libsvm':
Writer.for_path(train_path, train_fs, label_map=label_map).write()
elif to_suffix in ['.arff', '.csv', '.tsv']:
label_col = 'y' if with_labels else None
Writer.for_path(train_path, train_fs, label_col=label_col).write()
else:
Writer.for_path(train_path, train_fs).write()
def make_conversion_data(num_feat_files, from_suffix, to_suffix):
num_examples = 500
num_feats_per_file = 7
np.random.seed(1234567890)
convert_dir = join(_my_dir, 'train', 'test_conversion')
if not exists(convert_dir):
os.makedirs(convert_dir)
# Create lists we will write files from
ids = []
features = []
labels = []
for j in range(num_examples):
y = "dog" if j % 2 == 0 else "cat"
ex_id = "{}{}".format(y, j)
x = {"f{:03d}".format(feat_num): np.random.randint(0, 4) for feat_num
in range(num_feat_files * num_feats_per_file)}
x = OrderedDict(sorted(x.items(), key=lambda t: t[0]))
ids.append(ex_id)
labels.append(y)
features.append(x)
# Create vectorizers/maps for libsvm subset writing
feat_vectorizer = DictVectorizer()
feat_vectorizer.fit(features)
label_map = {label: num for num, label in
enumerate(sorted({label for label in labels if
not isinstance(label, (int, float))}))}
# Add fake item to vectorizer for None
label_map[None] = '00000'
# get the feature name prefix
feature_name_prefix = '{}_to_{}'.format(from_suffix.lstrip('.'),
to_suffix.lstrip('.'))
# Write out unmerged features in the `from_suffix` file format
for i in range(num_feat_files):
train_path = join(convert_dir, '{}_{}{}'.format(feature_name_prefix,
i, from_suffix))
sub_features = []
for example_num in range(num_examples):
feat_num = i * num_feats_per_file
x = {"f{:03d}".format(feat_num + j):
features[example_num]["f{:03d}".format(feat_num + j)] for j in
range(num_feats_per_file)}
sub_features.append(x)
train_fs = FeatureSet('sub_train', ids, labels=labels,
features=sub_features,
vectorizer=feat_vectorizer)
if from_suffix == '.libsvm':
Writer.for_path(train_path, train_fs,
label_map=label_map).write()
else:
Writer.for_path(train_path, train_fs).write()
# Write out the merged features in the `to_suffix` file format
train_path = join(convert_dir, '{}_all{}'.format(feature_name_prefix,
to_suffix))
train_fs = FeatureSet('train', ids, labels=labels, features=features,
vectorizer=feat_vectorizer)
if to_suffix == '.libsvm':
Writer.for_path(train_path, train_fs,
label_map=label_map).write()
else:
Writer.for_path(train_path, train_fs).write()
def make_conversion_data(num_feat_files, from_suffix, to_suffix):
num_examples = 500
num_feats_per_file = 7
np.random.seed(1234567890)
convert_dir = join(_my_dir, 'train', 'test_conversion')
if not exists(convert_dir):
os.makedirs(convert_dir)
# Create lists we will write files from
ids = []
features = []
labels = []
for j in range(num_examples):
y = "dog" if j % 2 == 0 else "cat"
ex_id = "{}{}".format(y, j)
x = {
"f{:03d}".format(feat_num): np.random.randint(0, 4)
for feat_num in range(num_feat_files * num_feats_per_file)
}
x = OrderedDict(sorted(x.items(), key=lambda t: t[0]))
ids.append(ex_id)
labels.append(y)
features.append(x)
# Create vectorizers/maps for libsvm subset writing
feat_vectorizer = DictVectorizer()
feat_vectorizer.fit(features)
label_map = {
label: num
for num, label in enumerate(
sorted({
label
for label in labels if not isinstance(label, (int, float))
}))
}
# Add fake item to vectorizer for None
label_map[None] = '00000'
# get the feature name prefix
feature_name_prefix = '{}_to_{}'.format(from_suffix.lstrip('.'),
to_suffix.lstrip('.'))
# Write out unmerged features in the `from_suffix` file format
for i in range(num_feat_files):
train_path = join(
convert_dir, '{}_{}{}'.format(feature_name_prefix, i, from_suffix))
sub_features = []
for example_num in range(num_examples):
feat_num = i * num_feats_per_file
x = {
"f{:03d}".format(feat_num + j):
features[example_num]["f{:03d}".format(feat_num + j)]
for j in range(num_feats_per_file)
}
sub_features.append(x)
train_fs = FeatureSet('sub_train',
ids,
labels=labels,
features=sub_features,
vectorizer=feat_vectorizer)
if from_suffix == '.libsvm':
Writer.for_path(train_path, train_fs, label_map=label_map).write()
else:
Writer.for_path(train_path, train_fs).write()
# Write out the merged features in the `to_suffix` file format
train_path = join(convert_dir, '{}_all{}'.format(feature_name_prefix,
to_suffix))
train_fs = FeatureSet('train',
ids,
labels=labels,
features=features,
vectorizer=feat_vectorizer)
if to_suffix == '.libsvm':
Writer.for_path(train_path, train_fs, label_map=label_map).write()
else:
Writer.for_path(train_path, train_fs).write()
def make_conversion_data(num_feat_files, from_suffix, to_suffix, with_labels=True):
num_examples = 500
num_feats_per_file = 7
np.random.seed(1234567890)
convert_dir = join(_my_dir, 'train', 'test_conversion')
if not exists(convert_dir):
os.makedirs(convert_dir)
# Create lists we will write files from
ids = []
features = []
labels = [] if with_labels else None
for j in range(num_examples):
y = "dog" if j % 2 == 0 else "cat"
ex_id = "{}{}".format(y, j)
# if we are not using labels, we do not want zero-valued features
# because it may be the case that some subset of features end up
# being all 0 and if this subset ends up being written out to a file
# below, then for some formats (e.g., megam) nothing will get written
# out which can cause issues when reading this file
lowest_feature_value = 0 if with_labels else 1
x = {"f{:03d}".format(feat_num): np.random.randint(lowest_feature_value, 4 + lowest_feature_value) for feat_num
in range(num_feat_files * num_feats_per_file)}
x = OrderedDict(sorted(x.items(), key=lambda t: t[0]))
ids.append(ex_id)
if with_labels:
labels.append(y)
features.append(x)
# Create vectorizers/maps for libsvm subset writing
feat_vectorizer = DictVectorizer()
feat_vectorizer.fit(features)
if with_labels:
label_map = {label: num for num, label in
enumerate(sorted({label for label in labels if
not isinstance(label, (int, float))}))}
# Add fake item to vectorizer for None
label_map[None] = '00000'
else:
label_map = None
# get the feature name prefix
feature_name_prefix = '{}_to_{}'.format(from_suffix.lstrip('.'),
to_suffix.lstrip('.'))
# use '_unlabeled' as part of any file names when not using labels
with_labels_part = '' if with_labels else '_unlabeled'
# Write out unmerged features in the `from_suffix` file format
for i in range(num_feat_files):
train_path = join(convert_dir, '{}_{}{}{}'.format(feature_name_prefix,
i,
with_labels_part,
from_suffix))
sub_features = []
for example_num in range(num_examples):
feat_num = i * num_feats_per_file
x = {"f{:03d}".format(feat_num + j):
features[example_num]["f{:03d}".format(feat_num + j)] for j in
range(num_feats_per_file)}
sub_features.append(x)
train_fs = FeatureSet('sub_train', ids, labels=labels,
features=sub_features,
vectorizer=feat_vectorizer)
if from_suffix == '.libsvm':
Writer.for_path(train_path, train_fs,
label_map=label_map).write()
elif from_suffix in ['.arff', '.csv', '.tsv']:
label_col = 'y' if with_labels else None
Writer.for_path(train_path, train_fs, label_col=label_col).write()
else:
Writer.for_path(train_path, train_fs).write()
# Write out the merged features in the `to_suffix` file format
train_path = join(convert_dir, '{}{}_all{}'.format(feature_name_prefix,
with_labels_part,
to_suffix))
train_fs = FeatureSet('train', ids, labels=labels, features=features,
vectorizer=feat_vectorizer)
# we need to do this to get around the FeatureSet using NaNs
# instead of None when there are no labels which causes problems
# later when comparing featuresets
if not with_labels:
train_fs.labels = [None] * len(train_fs.labels)
if to_suffix == '.libsvm':
Writer.for_path(train_path, train_fs,
label_map=label_map).write()
elif to_suffix in ['.arff', '.csv', '.tsv']:
label_col = 'y' if with_labels else None
Writer.for_path(train_path, train_fs, label_col=label_col).write()
else:
Writer.for_path(train_path, train_fs).write()
