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feat(matlab): verbatim paper LME (behavior ~ stim+day+stim:day+(1|rat)) + power sim on it

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Adds tdcs_paper_lme replicating the paper's exact formula/variable names (paper_*
switch cases): mergeA2 reproduces the interaction F(1)=7.09 vs 7.12, p=0.009 vs
0.008, with a coverage-confound warning. Rewrites tdcs_power_sim to fit that same
formula (interaction term canonicalized to day:stim). Adds a replication test.
Suite 37/37.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Experiments DB Dev
2026-07-20 12:40:26 -04:00
parent 800189371b
commit 7b5c27df8c
6 changed files with 178 additions and 47 deletions
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analysis/matlab/tests/tLme.m
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@@ -59,6 +59,18 @@ classdef tLme < matlab.unittest.TestCase
testCase.verifyError(@() tdcs_glm('lme_nonsense'), 'tdcs_glm:badScenario');
end
function testPaperFormulaReplicatesInteraction(testCase)
% The paper's exact formula (behavior ~ stim + day + stim:day +
% (1|rat)) on mergeA2 reproduces the paper's interaction
% (paper F(1)=7.12, p=0.008) -- same fit as the day*tDCS form.
cfg = tdcs_config();
evalc('L = tdcs_paper_lme(''mergeA2'', cfg);');
testCase.verifyEqual(L.interaction.df1, 1);
testCase.verifyEqual(L.interaction.F, 7.09, 'AbsTol', 0.1);
testCase.verifyEqual(L.interaction.p, 0.009, 'AbsTol', 0.002);
testCase.verifyLessThan(L.day.p, 1e-6); % strong learning
end
function testD0_13WindowFairCoverageAndParallel(testCase)
% The 0-13 window caps both anchor groups at day 13 (equal coverage),
% unlike the full window where Box-A2 stops at 13 but Box-B2 runs on.