Description Usage Arguments Author(s)
Conduct variable transformations called inside a zelig
call
1  transformer(formula, data, FUN = "log", check, f_out, d_out)

formula 
model formulae 
data 
data frame used in 
FUN 
character string of the transformation function. Currently
supports 
check 
logical whether to just check if a formula contains an
internally called transformation and return 
f_out 
logical whether to return the converted formula 
d_out 
logical whether to return the converted data frame. Note:

Christopher Gandrud
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