test: add python fixtures support for stats/incr/wmean

Om-A-osc · Om-A-osc · commit 4cf362c26fe4 · 2026-01-29T19:28:19.000+05:30
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diff --git a/lib/node_modules/@stdlib/stats/incr/wmean/test/fixtures/python/data.json b/lib/node_modules/@stdlib/stats/incr/wmean/test/fixtures/python/data.json
@@ -0,0 +1,302 @@
+[
+  {
+    "step": 1,
+    "x": 3.0471707975443136,
+    "w": 3.9559294497604784,
+    "mean": 3.0471707975443136
+  },
+  {
+    "step": 2,
+    "x": -10.399841062404956,
+    "w": 3.3577691973009576,
+    "mean": -3.126444550583255
+  },
+  {
+    "step": 3,
+    "x": 7.5045119580645725,
+    "w": 3.555310355269042,
+    "mean": 0.3509975744077484
+  },
+  {
+    "step": 4,
+    "x": 9.405647163912139,
+    "w": 3.925572252007643,
+    "mean": 2.753544869877046
+  },
+  {
+    "step": 5,
+    "x": -19.510351886538363,
+    "w": 2.348687300137866,
+    "mean": -0.2966862687887889
+  },
+  {
+    "step": 6,
+    "x": -13.021795068623181,
+    "w": 2.88683186016918,
+    "mean": -2.1306885327326004
+  },
+  {
+    "step": 7,
+    "x": 1.2784040316728538,
+    "w": 0.7850052908255215,
+    "mean": -2.0021205716643617
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+  {
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+    "x": -3.162425923435822,
+    "w": 0.6611973603262699,
+    "mean": -2.0378432392675006
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+  {
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+    "x": -0.16801157504288794,
+    "w": 3.3751745127733113,
+    "mean": -1.7838942273298977
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+  {
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+    "x": -8.5304392757358,
+    "w": 2.4083714101013496,
+    "mean": -2.379942511320534
+  },
+  {
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+    "x": 8.793979748628285,
+    "w": 2.8696569217578256,
+    "mean": -1.3156926211374218
+  },
+  {
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+    "x": 7.777919354289483,
+    "w": 3.8484944013385256,
+    "mean": -0.28571103145409305
+  },
+  {
+    "step": 13,
+    "x": 0.6603069756121605,
+    "w": 3.2101197680028952,
+    "mean": -0.2040497079223875
+  },
+  {
+    "step": 14,
+    "x": 11.272412069680328,
+    "w": 2.81253906322418,
+    "mean": 0.6028869213396181
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+  {
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+    "x": 4.675093422520456,
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+    "mean": 0.872852516773853
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+  {
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+    "x": -8.592924628832382,
+    "w": 1.5893554805068,
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+    "w": 0.2510073893829031,
+    "mean": 0.5519568003899903
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+    "x": -9.588826008289988,
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+    "mean": 0.0678565402877354
+  },
+  {
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+    "x": 8.784503013072726,
+    "w": 1.1514648968156933,
+    "mean": 0.2766434525404932
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+  {
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+    "x": -0.49925910986252897,
+    "w": 2.1017903542507175,
+    "mean": 0.2441410703285499
+  },
+  {
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+    "x": -1.8486236354526056,
+    "w": 4.281675059014014,
+    "mean": 0.07959462355871812
+  },
+  {
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+    "x": -6.809295444039414,
+    "w": 1.2463034807401698,
+    "mean": -0.07453994202242903
+  },
+  {
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+    "x": 12.225413386740303,
+    "w": 0.3856834342764235,
+    "mean": 0.010039483490497911
+  },
+  {
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+    "x": -1.5452948206880215,
+    "w": 1.4787810709077833,
+    "mean": -0.029914116527385744
+  },
+  {
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+    "x": -4.283278221631072,
+    "w": 1.5386094130567498,
+    "mean": -0.14063615675192645
+  },
+  {
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+    "x": -3.5213355048822956,
+    "w": 3.343390922161786,
+    "mean": -0.32163256326353584
+  },
+  {
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+    "x": 5.323091855533487,
+    "w": 2.829457546472264,
+    "mean": -0.07696426621497057
+  },
+  {
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+    "x": 3.6544406436407835,
+    "w": 3.9411012246214265,
+    "mean": 0.13548865366219276
+  },
+  {
+    "step": 29,
+    "x": 4.1273261159598835,
+    "w": 3.355136347604199,
+    "mean": 0.3200323834598058
+  },
+  {
+    "step": 30,
+    "x": 4.308210030078827,
+    "w": 2.0912956210563456,
+    "mean": 0.4317363357791127
+  },
+  {
+    "step": 31,
+    "x": 21.416476008704613,
+    "w": 4.08869988486357,
+    "mean": 1.5212025421425204
+  },
+  {
+    "step": 32,
+    "x": -4.064150163846156,
+    "w": 0.9181673075477492,
+    "mean": 1.4568355240616275
+  },
+  {
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+    "x": -5.122427290715374,
+    "w": 0.21128915835591636,
+    "mean": 1.4394336829268486
+  },
+  {
+    "step": 34,
+    "x": -8.137727282478778,
+    "w": 0.5412345178006446,
+    "mean": 1.3749825600895866
+  },
+  {
+    "step": 35,
+    "x": 6.159794225754957,
+    "w": 3.639560817922607,
+    "mean": 1.582139838161509
+  },
+  {
+    "step": 36,
+    "x": 11.289722927208917,
+    "w": 2.3631984282317986,
+    "mean": 1.8475743480392357
+  },
+  {
+    "step": 37,
+    "x": -1.1394745765487508,
+    "w": 0.8902317172646488,
+    "mean": 1.8171205821224452
+  },
+  {
+    "step": 38,
+    "x": -8.401564769625281,
+    "w": 2.5551193980064815,
+    "mean": 1.5266007308371616
+  },
+  {
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+    "x": -8.244812156912396,
+    "w": 0.8463293032945253,
+    "mean": 1.435442529141028
+  },
+  {
+    "step": 40,
+    "x": 6.505927878247011,
+    "w": 3.511969837880907,
+    "mean": 1.6244173800465052
+  },
+  {
+    "step": 41,
+    "x": 7.432541712034423,
+    "w": 2.2861657503127506,
+    "mean": 1.761991460740914
+  },
+  {
+    "step": 42,
+    "x": 5.4315426830519495,
+    "w": 1.9670040078727644,
+    "mean": 1.8352822469844088
+  },
+  {
+    "step": 43,
+    "x": -6.655097072886943,
+    "w": 1.577409236824595,
+    "mean": 1.7014373651904717
+  },
+  {
+    "step": 44,
+    "x": 2.3216132306671975,
+    "w": 3.188384706282554,
+    "mean": 1.7205884505077298
+  },
+  {
+    "step": 45,
+    "x": 1.1668580914072821,
+    "w": 1.8728817917116134,
+    "mean": 1.7107231718926006
+  },
+  {
+    "step": 46,
+    "x": 2.1868859672901295,
+    "w": 0.5294846046488949,
+    "mean": 1.7131094853391238
+  },
+  {
+    "step": 47,
+    "x": 8.714287779481898,
+    "w": 0.6782289203905251,
+    "mean": 1.7577662372038756
+  },
+  {
+    "step": 48,
+    "x": 2.2359554877468226,
+    "w": 4.813298556292621,
+    "mean": 1.7784750415795718
+  },
+  {
+    "step": 49,
+    "x": 6.789135630718949,
+    "w": 4.552045384467275,
+    "mean": 1.9756181293054198
+  },
+  {
+    "step": 50,
+    "x": 0.6757906948889146,
+    "w": 3.5285649556726733,
+    "mean": 1.9371486375865798
+  }
+]
diff --git a/lib/node_modules/@stdlib/stats/incr/wmean/test/fixtures/python/runner.py b/lib/node_modules/@stdlib/stats/incr/wmean/test/fixtures/python/runner.py
@@ -0,0 +1,49 @@
+#!/usr/bin/env python
+#
+# @license Apache-2.0
+#
+# Copyright (c) 2026 The Stdlib Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Generate fixture data for testing incremental weighted mean."""
+
+import json
+import numpy as np
+
+rng = np.random.default_rng(42)
+
+n = 50
+
+x = rng.normal(loc=0.0, scale=10.0, size=n)
+w = rng.uniform(0.1, 5.0, size=n)
+
+records = []
+
+for k in range(1, n + 1):
+    xk = x[:k]
+    wk = w[:k]
+
+    mu = np.average(xk, weights=wk)
+
+    records.append({
+        "step": k,
+        "x": float(x[k - 1]),
+        "w": float(w[k - 1]),
+        "mean": float(mu)
+    })
+
+with open("data.json", "w", encoding="utf-8") as f:
+    json.dump(records, f, indent=2)
+
+print("data.json written with", n, "records")
diff --git a/lib/node_modules/@stdlib/stats/incr/wmean/test/test.js b/lib/node_modules/@stdlib/stats/incr/wmean/test/test.js
