I have a problem that I am trying to resolve with no success. More than two
days searching and I didn't get a single clue. Sorry if the answer is out
there and I didn't find it.
Suppose that you have a logistic equation regression (binary model) from an
old model that you estimated some years ago. Therefore you know the
parameters âk (k = 1, 2, ..., p) because they were estimated in the past.
But you don't have the data that were used to fit the model.
My question is: can I introduce this old estimated logistic model in R as
an object (corresponding to a logistic regression model)?
I would like to use the "predict" function to prove this logistic
regression with a new set of data (present data) and then check the
validity of this old model standing the test of time. And to use this
function you need the object of the logistic regression model.
Thank you very much in advance.
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