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Re: regress vs polyfit
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From: |
Freddy López |
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Subject: |
Re: regress vs polyfit |
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Date: |
Mon, 20 Jun 2011 10:51:13 -0430 |
what is this help about - "the constant value 1" ?
It would to refer to the 'beta_0' constant in regression analysis.
On Mon, Jun 20, 2011 at 07:15, Thomas Grzybowski
<address@hidden> wrote:
> Hi:
>
> I am new to octave and want to fit a single regression line to some data. I
> have been using polyfit, and was looking at regress, but I find regress
> confusing. From the regress "Help":
>
> * `X' is a matrix of regressors, with the first column filled with the
> constant value 1
>
> I do not understand the help instructions. My data is simply x,y pairs -
>>
> Thanks,
> Thomas Grzybowski
>
>
>
>
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>
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