lyman.glm.contrast_matrix

lyman.glm.contrast_matrix(contrast, design_matrix)

Return a contrast matrix that is valid for a given design matrix.

Parameters

contrasttuple

A tuple with (1) the name of the contrast, (2) the involved regressors, and (3) the weight to use for each of those regressors.

design_matrixdataframe

Design matrix with regressor names corresponding to contrast elements.

Returns

contrast_matrixseries

Contrast weights with regressor names as the index.