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[Gnuplot-info] Differences when using xrange compared to seperate values
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From: Alexander S. <ale...@gm...> - 2009-03-26 15:56:07
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Hello. Using gnuplot 4.2 patchlevel 4 on an ArchLinux system. Please have a look at those two PNG images, which have been generated by Gnuplot: http://public-files.askwar.s3.amazonaws.com/gnuplot_diff_date_extracted/all-in-one/load.0319.png http://public-files.askwar.s3.amazonaws.com/gnuplot_diff_date_extracted/seperated/load.0319.png As you'll notice, the curves look VERY different. But they shouldn't look different... For the first graph (the "all-in-one" image), I gave Gnuplot a big CSV file containing all the values from this month. To make it plot only the curve for one day (for 2009-03-19), I used: set xrange [ "2009-03-19 00:00:00" : "2009-03-19 23:59:59" ] In the 2nd image (in the "seperated" directory), I first grepped out all the lines matching "2009-03-19" and then didn't use a "set xrange" at all. Another way to get this, would have been to do plot "< grep 2009-03-19 val.2009-03.csv" ... What I don't get at all is, why the curves look so different. They shouldn't look different, should they? For your reference, I made the files publically available. Please see below for download URLs! Thanks a lot for any help you can provide :) Alexander http://public-files.askwar.s3.amazonaws.com/gnuplot_diff_date_extracted/all-files.zip (876k) The ZIP files contains the following files, which you can also access seperately: http://public-files.askwar.s3.amazonaws.com/gnuplot_diff_date_extracted/all-in-one/load.19.gnuplot http://public-files.askwar.s3.amazonaws.com/gnuplot_diff_date_extracted/all-in-one/val.2009-03.csv http://public-files.askwar.s3.amazonaws.com/gnuplot_diff_date_extracted/all-in-one/load.0319.svg http://public-files.askwar.s3.amazonaws.com/gnuplot_diff_date_extracted/seperated/load.19.gnuplot http://public-files.askwar.s3.amazonaws.com/gnuplot_diff_date_extracted/seperated/Werte.0319.csv http://public-files.askwar.s3.amazonaws.com/gnuplot_diff_date_extracted/seperated/load.0319.svg Alexander -- [ Soc. => http://twitter.com/alexs77 | http://www.plurk.com/alexs77 ] [ Mehr => http://zyb.com/alexws77 ] [ Chat => Jabber: ale...@ja... | Google Talk: a....@gm... ] [ Mehr => AIM: alexws77 ] |
