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Re: [Gnuplot-info] need help with stacked histogram
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From: Steve C. <sc...@ja...> - 2009-10-20 18:04:05
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Yes, thanks, Thomas, for all your help. This technique works, and I'm not sure why I thought it didn't. It works with impulses too. Working too hard, I guess. Thanks again. Thomas Sefzick wrote: > you may use boxes instead of impulses: > > set title "Database Connections" > set key below > set xdata time > set timefmt "%Y-%m-%d %H:%M" > set format x "%H:%M" > set style fill solid > set boxwidth 60.0 > set yrange [0:] > plot 'latest-connections.dat' using 1:7 with boxes title "other", \ > '' using 1:($3+$4+$5+$6) with boxes title "D", \ > '' using 1:($3+$4+$5) with boxes title "C", \ > '' using 1:($3+$4) with boxes title "B", \ > '' using 1:($3) with boxes title "A" > > but, if the highest impulses overdraw the smaller ones then there > is something wrong with your gnuplot 4.0 installation. i can not > reproduce this behavior here with > G N U P L O T > Version 4.0 patchlevel 0 > last modified Thu Apr 15 14:44:22 CEST 2004 > System: Linux 2.6.27.29-0.1-pae > > > Steve Cohen wrote: > >> Thanks, Thomas - this works - up to a point. The bars display as I >> wanted them to. >> >> However, part of the point of my earlier attempt was to get the >> time-based x-axis to show recognizable times (17:30, etc.) In this >> graph, since there are so many bars so close together, the time values >> overwrite each other beneath the x-axis making an unrecognizable line of >> black mess. How would I fix this? >> >> Also, unfortunately, the server I ultimately want to run this on runs >> RedHat EL which has not released a distro yet that includes Gnuplot 4.2, >> and so I am restricted to using 4.0 there. Over there I could ALMOST get >> what I like running using the following with the same data. This WORKS >> on 4.2, but on 4.0 the largest impulse overwrites all the others so that >> only the first impulse is seen. >> >> set title "Database Connections" >> set key below >> set xdata time >> set timefmt "%Y-%m-%d %H:%M" >> set format x "%H:%M" >> set yrange [0:*] >> >> plot 'latest-connections.dat' using 1:7 title "other" with impulses, \ >> 'latest-connections.dat' using 1:($6+$5+$4+$3) title "A" with impulses, \ >> 'latest-connections.dat' using 1:($5+$4+$3) title "B" with impulses, \ >> 'latest-connections.dat' using 1:($4+$3) title "C" with impulses, \ >> 'latest-connections.dat' using 1:3 title "C" with impulses >> >> Is there a way to do something like this in 4.0? Because I haven't found >> it, I am restricted to a messy and somewhat inadquate replacement using >> impulses for the whole and points for the parts, which is somewhat >> informative but I want it to stack. >> >> >> >> Thomas Sefzick wrote: >> >>> you mix xticlabels for histograms and x-axis timedata. >>> this can not work. and, your column numbering is not >>> correct. >>> use following script and see if it does what you expect: >>> >>> reset >>> set title "Database Connections" >>> set key below >>> set style data histogram >>> set style histogram rowstacked >>> set style fill solid noborder >>> set boxwidth 0.75 >>> plot 'latest-connections.dat' using 3:xtic(2) title "A", \ >>> '' using 4 title "B", \ >>> '' using 5 title "C", \ >>> '' using 6 title "D", '' using ($7-($3+$4+$5+$6)) title "other" >>> >>> >>> Steve Cohen wrote: >>> >>> >>>> All the samples tend to assume that you are working from a data file >>>> where the header row contains the labels for each piece of the stack. >>>> That is not the case in my situation. I want to supply the labels from >>>> each stack in the script. >>>> >>>> My script is as follows: >>>> >>>> #set terminal png transparent nocrop enhanced size 900 600 >>>> #set output 'latest-connections.png' >>>> set title "Database Connections" >>>> set key below >>>> set xdata time >>>> set timefmt "%Y-%m-%d %H:%M" >>>> set format x "%H:%M" >>>> set style data histogram >>>> set style histogram rowstacked >>>> set style fill solid noborder >>>> >>>> plot 'latest-connections.dat' using 1 "%Y-%m-%d %H:%M", \ >>>> '' using 2 title "A", \ >>>> '' using 3 title "B", \ >>>> '' using 4 title "C", \ >>>> '' using 5 title "D", \ >>>> '' using ($6-($2+$3+$4+$5)) title "other" >>>> ------------------------------------------ >>>> >>>> Data File is as follows: >>>> >>>> 2009-10-17 10:15 5 0 0 22 27 >>>> 2009-10-17 10:17 5 0 0 8 13 >>>> 2009-10-17 10:19 5 0 0 8 13 >>>> 2009-10-17 10:31 5 0 0 13 18 >>>> ... >>>> >>>> Error message is: >>>> >>>> "connections2.gplot", line 17: Please use between 1 and 7 conversions, >>>> of type double (%lf) >>>> >>>> Not sure what this means or what I must do to correct it. >>>> >>>> Can someone help? >>>> >>>> Thanks. >>>> >>>> >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> Come build with us! 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