eegprep.std_builddesignmat

eegprep.std_builddesignmat(design, trialinfo, expanding=False)

Build a design matrix from a STUDY design and trial metadata.

The output mirrors EEGLAB’s helper: categorical factors are encoded as 1-based level numbers, continuous factors keep their numeric values, and a constant column is appended at the end.

Parameters:

• design (dict[str, Any])

• trialinfo (list[dict[str, Any]] | dict[str, Any])

• expanding (int | bool)

Return type:

tuple[ndarray, list[str], ndarray]