Need A Data Visualization/Graphing Program

Adam Dershowitz dersh at
Mon Jan 11 10:43:14 PST 2016

I second gnuplot.  It does particularly well with time (hours:min, days, months etc) while Excel quickly becomes a lesson in frustration!

On January 11, 2016 1:03:04 PM EST, Clemens Lang <cal at> wrote:
>On Sun, Jan 10, 2016 at 09:57:02PM -0500, Charles Phillips wrote:
>> Right now I use Numbers for some, and have struggled with Excel. I
>> need a flexible program that allows me to enter some columns of data
>> (perigee, apogee, inclination, etc) and graph them again time of the
>> orbital description (I use Two Line Element sets from the U.S. Air
>> Force). 
>gnuplot should be able to handle this, can be heavily customized,
>automated and has multiple possible outputs (images, PDF, screen, ...)
>Clemens Lang
>macports-users mailing list
>macports-users at

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