[ajot]

It is! I remember using this (or SciDavis, a related project) a couple of years back in college. It was not as powerful as Origin 10 years ago, but it ran on Linux.

This is great for people who don't know nor want to learn to program.

[pvitz]

Same experience here! We used Origin and/or QtiPlot in a physics lab for the graphs and quick regressions.