GLS

Generalised Lomb-Scargle periodogram

Based on:
M. Zechmeister & M. Kürster, The generalised Lomb-Scargle periodogram. A new formalism for the floating-mean and Keplerian periodograms, 2009, A&A, 496, 577 [pdf, bibtex]

A collection of the GLS for different programming languages available in

• C
• Fortran
• Python
• IDL
• Javascript
• Matlab

The online demo version (http://raw.githack.com/mzechmeister/GLS/master/javascript/gls.html?run) is based on Javascript and runs in the browser without any installation.