jStat seems much more comprehensive stats-wise than other js libs. Lacking docs, the source is well organized and readable: https://github.com/jstat/jstat/tree/

jStat seems much more comprehensive stats-wise than other js libs. Lacking docs, the source is well organized and readable: https://github.com/jstat/jstat/tree/master/src https://github.com/jstat/jstat/tree/master/src For a few stat functions more, check out Jason Davies' science.js, which was extracted from d3.js: https://github.com/jasondavies/science.js https://github.com/jasondavies/science.js For basic stats and math, MooTool's Array.Math has some nice functions: http://mootools.net/forge/p/array_math http://mootools.net/forge/p/array_math