Version 4.66 is available upstream. Please consider updating! It seems that version 4.66 is available upstream, while the latest version in the Gentoo tree is 4.3.0. You think this warning is false? Read more about it here.
xyscan is a tool for scientist in the need to extract data points,
i.e. numeric values, from a plot. It allows to scan the plots and
extract data points including the size of the error bars (both in x
and y). It can handle plots with linear and logarithmic scales.