Netometer ping data are collected every 15 minutes, every day of the year. Ten sites are pinged 10 times each, and grand mean minimum, mean mean, and mean max ping times are archived. This chart shows mean minimum, mean mean, or mean max ping times within a phase space with individual points constructed as (data_valueN, data_valueN+1).

FYI: Log-linear regression on these data points gives a line with slope of 0.91 and y-intercept of 6.31. The correlation coefficient is 0.91048899530536.

This program is a version of demo.cgi by Sanford Morton, heavily modified by Michael Grobe. The program uses Perl module Chart::Plot, written by Sanford Morton and downloaded from www.speakeasy.org, to draw plots.