Time for some collective wisdom. What are some good, noncommercial (or at least not expensively commercial; matlab does a good job, but the price tag has 4 digits left of the decimal, 2 would be ok) plotting packages? One of the best I ever encountered was CricketGraph, but that was back in 1990 or so. They seem defunct and it's getting hard to run on modern computers. (Impossible with Mac OSX 10.5, doable in 10.4, but it came out in the era of OS 6). Mac or *nix platforms.
I'm not trying to do anything elaborate, just view some data, perhaps multiple x or y axes, logarithmic axes, put labels where I'd like (at a click, not by computing displacements, to name a flaw of GrADS). Data to come from plain text files. I suppose I can insert commas if the software insisted. I'd as soon be able to go to a few hundred thousand data points, and 10,000 or so is definitely required. If it turns out that 'grapher' (shipped with Macs) does the job, I'll register my embarrassment and ask how to make it read in a data file.
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