Easy question for an economist

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Simon 2013-6-10

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关闭： MATLAB Answer Bot 2021-8-20

Is there a way to compute multiple linear regression (the script already is working fine) but i need to be able to say something like : for all combinations of X's do a LinearModel.fit with Y (It's working at this point) AND after switch to another Y ( I have 70 Y to test). Can I do something like :

    %
 for i = 1:15
  for j = 1:15
     REG = LinearModel.fit({DS{1,i},Y{1,j})
     RSQ{1,i}(1,1) = REG.Rsquared.Adjusted
     COEFF{1,i} = REG.Coefficients
end
end

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Answer 1

Shashank Prasanna 2013-6-10

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You can certainly fit a linear model in a loop for different response values in Y for the same predictors. But I am guessing there is a step after this.

Could you elaborate on the what you are trying to do, because there may be other tools. For example, mvregress can be used when you actually have a multivariate response Y.

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Shashank Prasanna 2013-6-11

You can certainly try, but is the end goal just to collect all the coefficients and residuals? If your question is: can I try combinations, you certainly can, but I was trying to see if there is a bigger problem you are trying to solve here.

If something is not working or you are getting stuck, please provide more info, err msg etc.

Simon 2013-6-11