zelig callConduct variable transformations called inside a zelig call
transformer(formula, data, FUN = "log", check, f_out, d_out)model formulae
data frame used in formula
character string of the transformation function. Currently
supports factor and log.
logical whether to just check if a formula contains an
internally called transformation and return TRUE or FALSE
logical whether to return the converted formula
logical whether to return the converted data frame. Note:
f_out must be missing