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| -rw-r--r-- | gn3/partial_correlations.py | 32 | ||||
| -rw-r--r-- | tests/unit/test_partial_correlations.py | 92 |
2 files changed, 124 insertions, 0 deletions
diff --git a/gn3/partial_correlations.py b/gn3/partial_correlations.py new file mode 100644 index 0000000..8c37886 --- /dev/null +++ b/gn3/partial_correlations.py @@ -0,0 +1,32 @@ +""" +This module deals with partial correlations. + +It is an attempt to migrate over the partial correlations feature from +GeneNetwork1. +""" + +from functools import reduce + +def export_informative(trait_data: dict, inc_var: bool = False) -> tuple: + """ + Export informative strain + + This is a migration of the `exportInformative` function in + web/webqtl/base/webqtlTrait.py module in GeneNetwork1. + + There is a chance that the original implementation has a bug, especially + dealing with the `inc_var` value. It the `inc_var` value is meant to control + the inclusion of the `variance` value, then the current implementation, and + that one in GN1 have a bug. + """ + def __exporter__(acc, data_item): + if not inc_var or data_item["variance"] is not None: + return ( + acc[0] + (data_item["sample_name"],), + acc[1] + (data_item["value"],), + acc[2] + (data_item["variance"],)) + return acc + return reduce( + __exporter__, + filter(lambda td: td["value"] is not None, trait_data["data"].values()), + (tuple(), tuple(), tuple())) diff --git a/tests/unit/test_partial_correlations.py b/tests/unit/test_partial_correlations.py new file mode 100644 index 0000000..6eea078 --- /dev/null +++ b/tests/unit/test_partial_correlations.py @@ -0,0 +1,92 @@ +"""Module contains tests for gn3.partial_correlations""" + +from unittest import TestCase +from gn3.partial_correlations import export_informative + +class TestPartialCorrelations(TestCase): + """Class for testing partial correlations computation functions""" + + def test_export_informative(self): + """Test that the function exports appropriate data.""" + for trait_data, inc_var, expected in [ + [{"data": { + "sample1": { + "sample_name": "sample1", "value": 9, "variance": None, + "ndata": 13 + }, + "sample2": { + "sample_name": "sample2", "value": 8, "variance": None, + "ndata": 13 + }, + "sample3": { + "sample_name": "sample3", "value": 7, "variance": None, + "ndata": 13 + }, + "sample4": { + "sample_name": "sample4", "value": 6, "variance": None, + "ndata": 13 + }, + }}, 0, ( + ("sample1", "sample2", "sample3", "sample4"), (9, 8, 7, 6), + (None, None, None, None))], + [{"data": { + "sample1": { + "sample_name": "sample1", "value": 9, "variance": None, + "ndata": 13 + }, + "sample2": { + "sample_name": "sample2", "value": 8, "variance": None, + "ndata": 13 + }, + "sample3": { + "sample_name": "sample3", "value": None, "variance": None, + "ndata": 13 + }, + "sample4": { + "sample_name": "sample4", "value": 6, "variance": None, + "ndata": 13 + }, + }}, 0, ( + ("sample1", "sample2", "sample4"), (9, 8, 6), + (None, None, None))], + [{"data": { + "sample1": { + "sample_name": "sample1", "value": 9, "variance": None, + "ndata": 13 + }, + "sample2": { + "sample_name": "sample2", "value": 8, "variance": None, + "ndata": 13 + }, + "sample3": { + "sample_name": "sample3", "value": 7, "variance": None, + "ndata": 13 + }, + "sample4": { + "sample_name": "sample4", "value": 6, "variance": None, + "ndata": 13 + }, + }}, True, (tuple(), tuple(), tuple())], + [{"data": { + "sample1": { + "sample_name": "sample1", "value": 9, "variance": None, + "ndata": 13 + }, + "sample2": { + "sample_name": "sample2", "value": 8, "variance": 0.657, + "ndata": 13 + }, + "sample3": { + "sample_name": "sample3", "value": 7, "variance": None, + "ndata": 13 + }, + "sample4": { + "sample_name": "sample4", "value": 6, "variance": None, + "ndata": 13 + }, + }}, 0, ( + ("sample1", "sample2", "sample3", "sample4"), (9, 8, 7, 6), + (None, 0.657, None, None))]]: + with self.subTest(trait_data=trait_data): + self.assertEqual( + export_informative(trait_data, inc_var), expected) |