Re: [Help-gsl] what does xstride,ystride mean and how to set them?

[Hongzheng Wang]

Hi,

these parameters are used to control the step lengths of data
samplings.  Consider data sequence x for example.  The data you would
like to feed into this function may not be one by one but every two.
Then you need to let xstride be 2 to achieve that.

Best,
HZ

On Thu, Sep 16, 2010 at 10:48 PM, Richard <address@hidden> wrote:
>  Hi,
> I want to use  gsl_fit_linear function. But I am puzzled withe the
> parameters xstride and ystride.
> Could anybody like to give some explanations ?
> Thanks in advance.
>
> Richard
> PS. function signature :
>  int *gsl_fit_linear* (const double * x, const size_t xstride, const double
> * y, const size_t ystride, size_t n, double * c0, double * c1, double *
> cov00, double * cov01, double * cov11, double * sumsq)
>
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