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[Bug-gsl] undesired behavior of gsl_stats_sd
From: |
Ming Ji |
Subject: |
[Bug-gsl] undesired behavior of gsl_stats_sd |
Date: |
Wed, 24 Apr 2013 11:23:15 -0500 |
Hi,
The output of the following test code is nan. I don't think this is the
desired behavior for users. When number of input data is 1, I think it is
more reasonable to say standard deviation is 0 instead of nan.
thanks,
Ming
#include <iostream>
#include <gsl/gsl_statistics.h>
itn main()
{
double data[1] = {1.0};
double sd = gsl_stats_sd(data, 1, 1);
std::cout << sd << std::endl;
return 0;
}
- [Bug-gsl] undesired behavior of gsl_stats_sd,
Ming Ji <=