Summary

Implements the first PR1 batch for robustness + plotting policy:

• Adds global plot style API:
  • nstat.setPlotStyle('modern'|'legacy')
  • nstat.getPlotStyle
  • nstat.applyPlotStyle
• Wires style application into core plotting entry points without renaming APIs:
  • SignalObj.plot
  • FitResult.plotCoeffs
  • FitResult.plotResults
  • FitResult.KSPlot
  • FitResult.plotSeqCorr
  • FitResult.plotInvGausTrans
  • FitResult.plotResidual
  • FitResSummary.plotAllCoeffs
  • FitResSummary.plotResidualSummary
  • FitResSummary.plotSummary
• Documents style toggle in:
  • README.md
  • docs/DEVPLAN.md

Plot policy behavior

• legacy: no style mutation (reproduction mode)
• modern: readability-focused visual updates applied to existing graphics objects
  (fonts/line widths/marker sizes/legend style) while preserving traces/axes/panels.

Parity verification

Executed locally (MATLAB 2025b):

addpath('/Users/iahncajigas/Library/CloudStorage/Dropbox/Research/Matlab/nSTAT_currentRelease_Local/tools');
check_parity_against_baseline('Seed',0,'Style','legacy','CheckPixels',false);
check_parity_against_baseline('Seed',0,'Style','modern','CheckPixels',false);
run_all_checks('GenerateBaseline',false,'CheckParity',true,'RunTests',true,'PublishDocs',false,'Style','modern');

Results:

• Legacy parity: PASS (numeric), PASS (plot structure)
• Modern parity: PASS (numeric), PASS (plot structure)
• run_all_checks: parity PASS; tests stage skipped because tests/ directory does not yet exist.

Notes

• The style helper explicitly avoids creating legends on axes that did not already have one.