Expand source code
# Copyright (c) 2021. Davi Pereira dos Santos
# This file is part of the i-dict project.
# Please respect the license - more about this in the section (*) below.
#
# i-dict is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# i-dict is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with i-dict. If not, see <http://www.gnu.org/licenses/>.
#
# (*) Removing authorship by any means, e.g. by distribution of derived
# works or verbatim, obfuscated, compiled or rewritten versions of any
# part of this work is illegal and it is unethical regarding the effort and
# time spent here.
#
from idict import let
from idict.function.wrapper import call, apply
def df_head(field="df", output="head"):
"""
>>> from idict import idict
>>> d = idict.fromtoy(output_format="df")
>>> d >>= df_head() # doctest: +SKIP
>>> d.head # doctest: +SKIP
attr1 attr2 class
0 5.1 6.4 0
1 1.1 2.5 1
2 6.1 3.6 0
3 1.1 3.5 1
4 3.1 2.5 0
"""
return let(call, field=field, method="head", output=output)
def xywrapper(function, Xin="X", yin="y", Xout="X", yout="y", version=0, **config):
r"""
>>> from sklearn.utils import resample
>>> from idict import idict
>>> d = idict.fromtoy(output_format="Xy")
>>> d.y
array([0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1])
>>> d >>= xywrapper(resample, n_samples=2, random_state=0) # doctest: +SKIP
>>> d.X # doctest: +SKIP
attr1 attr2
12 2.1 0.1
15 31.1 4.7
>>> d.y # doctest: +SKIP
array([0, 1])
"""
return let(apply, function=function, input=[Xin, yin], output=[Xout, yout], config=config)