1.1.12. patsy.incr_dbuilders¶

patsy.incr_dbuilders(formula_like, data_iter_maker, eval_env=0, NA_action='drop')[source]¶

Construct two design matrix builders incrementally from a large data set.

incr_dbuilders() is to incr_dbuilder() as dmatrices() is to dmatrix(). See incr_dbuilder() for details.