[R] modifying model coefficients
philb at philbrierley.com
Mon Oct 19 05:26:06 CEST 2009
I have build a model but want to then manipulate the coefficients in some
I can extract the coefficients and do the changes I need, but how do I then
put these new coefficients back in the model so I can use the predict
my_model <- lm(x ~ . , data=my_data)
my_scores <- predict(my_model, my_data)
my_coeffs <- coef(my_model)
## here we manipulate my_coeffs
## and then want to set the my_model
## coefficients to the new values so we
## predict using the new values
my_model.coefs <- my_coeffs ?? how is this done?
?? so that this will work with the new coefficients
my_scores_new <- predict(my_model, my_data)
Any code snippets would be appreciated very much.
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