Hi I'm not an expert in statistics but I just realised that in the covariance definition used for
double gsl_stats_covariance (const double data1[], const size_t stride1, const double data2[], const size_t stride2, const size_t n) http://www.gnu.org/software/gsl/manual/html_node/Covariance.html covar = (1/(n - 1)) \sum_{i = 1}^{n} (x_i - \Hat x) (y_i - \Hat y) Is there any particular reason for dividing with (n-1) instead of just 'n' ? Whats the reasoning behind this ? Thanks in advance Srimal. -- ~ Srimal Jayawardena BSc (Engineering), BIT, MIET PhD Candidate Research School of Information Sciences and Engineering College of Engineering and Computer Science Building 115, Corner of North and Daley Roads Australian National University T: +61 2 6125 1771 M: +61 422 684 854 F: +61 2 6125 8651 ANU Contact Info : http://arp.anu.edu.au/user/3788 http://srimal.sri-lankan.net/ http://srimal-techdiary.blogspot.com/ _______________________________________________ Help-gsl mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-gsl
