Version 20210713 is available upstream. Please consider updating! It seems that version 20210713 is available upstream, while the latest version in the Gentoo tree is 20131220. You think this warning is false? Read more about it here.
Dataplot is a software system for scientific visualization,
statistical analysis, and non-linear modeling. The target Dataplot
user is the researcher and analyst engaged in the characterization,
modeling, visualization, analysis, monitoring, and optimization of
scientific and engineering processes (original version:1978).
Gentoo version adds autotools to facilitate building and robustness.