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Experiments DB Dev 77b631bcac feat(matlab): mergeNaive grouping (control=A2+Naive, tDCS=B2+Right) + GLM/power
Adds cfg.mergeNaive and scenario/paper/phase/power support. This pooled grouping
is the closest replication of the paper's full pattern: paper LME interaction
F(1)=7.30, p=0.008 (paper 7.12/0.008), stim main n.s. (p=0.21 = equal on Day 1),
strong day effect; the overall tDCS advantage is significant at the cluster-honest
per-animal level (rate p=0.003) and well powered. Adds a grouping test. Suite 38/38.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-20 12:50:35 -04:00

119 lines
4.5 KiB
Matlab

function [S, meta] = tdcs_scenario_data(scenario)
%TDCS_SCENARIO_DATA Build one merge/window scenario from the curated tDCS data.
% [S, META] = TDCS_SCENARIO_DATA(SCENARIO) loads the curated 12-animal
% table via TDCS_LOAD_DATA, applies the requested group-merge map from
% TDCS_CONFIG, restricts to day <= maxDay per the scenario's window
% suffix, adds mean-centered day covariates DAY_C / DAY_C2, and recodes
% GROUP as a categorical with CFG.REF ('Electrode-Box-B2') as the FIRST
% (reference) category via REORDERCATS. S is also written to
% analysis/matlab/derived/<SCENARIO>.csv via WRITETABLE (the derived/
% folder is created if it does not already exist).
%
% SCENARIO must be one of:
% unmerged_full, unmerged_d0_10, mergeA2_full, mergeA2_d0_10,
% mergeB2_full, mergeB2_d0_10
%
% The scenario name is split into:
% - a merge key: 'unmerged' | 'mergeA2' | 'mergeB2', selecting which
% containers.Map from TDCS_CONFIG (if any) to apply to relabel
% GROUP. 'unmerged' applies no relabeling (identity) -- it is not
% backed by a config map at all, since only the two "unknown"
% conditions (Electrode-Box-A, Right-Electrode) are ever merge
% targets, and the unmerged scenario reports them unmerged/as-is.
% - a day window: '_full' -> maxDay = 26, '_d0_10' -> maxDay = 10.
%
% META is a struct with fields:
% .mergeKey 'unmerged' | 'mergeA2' | 'mergeB2'
% .maxDay 26 or 10
% .isUnmerged true only when mergeKey == 'unmerged'
[mergeKey, maxDay] = localParseScenario(scenario);
cfg = tdcs_config();
T = tdcs_load_data();
switch mergeKey
case 'unmerged'
% Identity: no relabeling. An empty map means isKey(...) is
% always false below, so every group passes through unchanged.
mergeMap = containers.Map('KeyType', 'char', 'ValueType', 'char');
case 'mergeA2'
mergeMap = cfg.mergeA2;
case 'mergeB2'
mergeMap = cfg.mergeB2;
case 'mergeNaive'
mergeMap = cfg.mergeNaive;
otherwise
error('tdcs_scenario_data:badScenario', ...
'Unrecognized scenario "%s".', scenario);
end
% Relabel GROUP per the merge map. Groups that are not a key in the map
% (e.g. Naive, Electrode-Box-A2, Electrode-Box-B2 under mergeA2/mergeB2,
% or every group under the empty 'unmerged' map) are left unchanged --
% only the two "unknown" conditions are ever merge-map keys.
groupCell = cellstr(T.group);
for i = 1:numel(groupCell)
if isKey(mergeMap, groupCell{i})
groupCell{i} = mergeMap(groupCell{i});
end
end
% Day window (applied after relabeling, before centering, per the plan).
dayMask = T.day <= maxDay;
S = T(dayMask, :);
groupCell = groupCell(dayMask);
% Recode GROUP as categorical with cfg.ref first (the GLME reference
% level). Only categories actually present after merge+window survive.
S.group = categorical(groupCell);
allCats = categories(S.group);
assert(ismember(cfg.ref, allCats), 'tdcs_scenario_data:refMissing', ...
'Reference group "%s" is absent from scenario "%s".', cfg.ref, char(scenario));
otherCats = allCats(~strcmp(allCats, cfg.ref));
S.group = reordercats(S.group, [{cfg.ref}; otherCats]);
% Mean-centered day covariates, computed on the post-window data.
S.day_c = S.day - mean(S.day);
S.day_c2 = S.day_c .^ 2;
% Persist the derived scenario table.
thisDir = fileparts(mfilename('fullpath'));
derivedDir = fullfile(thisDir, 'derived');
if ~exist(derivedDir, 'dir')
mkdir(derivedDir);
end
outFile = fullfile(derivedDir, [char(scenario) '.csv']);
writetable(S, outFile);
meta = struct();
meta.mergeKey = mergeKey;
meta.maxDay = maxDay;
meta.isUnmerged = strcmp(mergeKey, 'unmerged');
end
function [mergeKey, maxDay] = localParseScenario(scenario)
%LOCALPARSESCENARIO Split "<mergeKey>_full" / "_d0_10" / "_d0_13" apart.
scenario = char(scenario);
if endsWith(scenario, '_full')
maxDay = 26;
mergeKey = scenario(1:end - numel('_full'));
elseif endsWith(scenario, '_d0_10')
maxDay = 10;
mergeKey = scenario(1:end - numel('_d0_10'));
elseif endsWith(scenario, '_d0_13')
maxDay = 13; % day 13 = last day Box-A2 has data (fair A2-vs-B2 window)
mergeKey = scenario(1:end - numel('_d0_13'));
else
error('tdcs_scenario_data:badScenario', ...
'Scenario "%s" does not end in "_full", "_d0_10", or "_d0_13".', scenario);
end
if ~ismember(mergeKey, {'unmerged', 'mergeA2', 'mergeB2', 'mergeNaive'})
error('tdcs_scenario_data:badScenario', ...
'Scenario "%s" has unrecognized merge key "%s".', scenario, mergeKey);
end
end