[R] how to extract the original data of a glm object

[leffgh]

  my function is 
 glm(a~log(b)+c+d+e,family=binomial,data=f)->aa
 
  
  I want to extract the original data set of aa. How to do it ?
  
You may suggest the model.frame() function. In fact ,i have tried it.
model.frame returns a data frame of containing a,log(b) NOT b,c,d,e 
I want to extract a data frame containing a,b,c,d,e,which is exactly the
same as "f"
How can I achieve this result?


I want to do this because I need to extract the formular and act on another
data set ,whose predict variables are the same as those of "f", but the
response variable is different .
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