[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Help-gsl] Section 20, Statistics and gsl_vector/gsl_matrix
From: |
Brian Gough |
Subject: |
Re: [Help-gsl] Section 20, Statistics and gsl_vector/gsl_matrix |
Date: |
Wed, 05 Sep 2007 18:58:56 +0100 |
User-agent: |
Wanderlust/2.14.0 (Africa) Emacs/22.1 Mule/5.0 (SAKAKI) |
At Sun, 2 Sep 2007 14:07:39 -0300,
Ralph Silva wrote:
> just a quick question: How can I use those functions in Section 20 fo the
> manual, Statistics, directly from a gsl_vector? I took a look at Help-GSL
> Archives but I couldn't find anything related to it.
>
> For example, I am using a variable "xdt" ( gsl_vector *xdt ) and do some
> computation. After some steps, I want to do something like
>
> ...
> gsl_sort_vector(xdt); /* This works fine */
> n = 1000;
>
> /* This do not work obviously */
> mean = gsl_stats_mean(xdt,1,n);
mean = gsl_stats_mean (xdt->data, xdt->stride, xdt->size)
The "Vectors And Matrices" chapter of the manual has details of the
memory layout of the vector elements and the gsl_vector struct.
--
Brian Gough
Network Theory Ltd,
Publishing Free Software Manuals --- http://www.network-theory.co.uk/