octave-lssa 0.1.3-2 (s390x binary) in ubuntu focal

 This package implementing tools to compute spectral decompositions of
 irregularly-spaced time series in Octave, a scientific software
 package. Currently includes functions based off the Lomb-Scargle
 periodogram and Adolf Mathias' implementation for R and C.
 .
 This Octave add-on package is part of the Octave-Forge project.