The moments directory has a C program to generate the mean, variance, skew, and kurtosis for a column of collectd data
R-scripts are the slow version of that, with stem() and fitdistr().

Index of /projects/collectd/

NameLast ModifiedSizeType
Parent Directory/ -  Directory
R-scripts/2011-Oct-23 12:18:49-  Directory
moments/2011-Oct-23 12:22:16-  Directory
lighttpd/1.4.28