GSL statistics, what is stride?
c, c++, gsl, standard-deviation, statistics
Solution
A stride is the separation in the array between two consecutive elements. If you have an array of `double`s as the argument, then the stride would be 1.
The idea is that you can handle multiple data within a single array, and operate on different subcomponents of the array.
Problem
I would like to use GSL (Gnu Scientific Lib) to calculate the standard deviation of an array. http://www.gnu.org/software/gsl/manual/html_node/Mean-and-standard-deviation-and-variance.html In the manual, the function prototype is gsl_stats_sd (const double data[], size_t stride, size_t n) However, I don't quite understand what the "stride" is here. Would somebody know what it is?