Stepwise regression with no Constant

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Mark
Mark on 30 May 2011
Commented: Lev Prislan on 24 Aug 2016
Matlab includes a constant as a default ..... is it possible to do a stepwise regression in Matlab without a constant? Thanks

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Answers (1)

Oleg Komarov
Oleg Komarov on 31 May 2011
It doesn't say so neither in stepwisefit nor in stepwise.
An example:
load hald
stepwise(ingredients,heat)
  1 Comment
Lev Prislan
Lev Prislan on 24 Aug 2016
It does say: "stepwise automatically includes a constant term in all models. Do not enter a column of 1s directly into X."

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