59 lines
1.6 KiB
Python
59 lines
1.6 KiB
Python
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# scipy-yli: Helpful SciPy utilities and recipes
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# Copyright © 2022–2023 Lee Yingtong Li (RunasSudo)
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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from pytest import approx
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import pandas as pd
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import yli
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def test_kaplanmeier_simple():
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"""Compare yli.kaplanmeier for simple example"""
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df = pd.DataFrame({
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'SurvTime': [2, 4, 6, 8],
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'Status': [True, True, True, True]
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})
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xpoints, ypoints, _, _ = yli.survival.calc_survfunc_kaplanmeier(df['SurvTime'], df['Status'], False)
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assert xpoints[0] == 0
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assert ypoints[0] == 1
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assert xpoints[1] == 2
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assert ypoints[1] == 1
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assert xpoints[2] == 2
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assert ypoints[2] == 0.75
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assert xpoints[3] == 4
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assert ypoints[3] == 0.75
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assert xpoints[4] == 4
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assert ypoints[4] == approx(0.5)
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assert xpoints[5] == 6
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assert ypoints[5] == approx(0.5)
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assert xpoints[6] == 6
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assert ypoints[6] == approx(0.25)
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assert xpoints[7] == 8
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assert ypoints[7] == approx(0.25)
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assert xpoints[8] == 8
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assert ypoints[8] == 0
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