Histogram With Error Bars Gnuplot
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Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask gnuplot error bar Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign gnuplot boxes up Gnuplot barchart histogram with errorbars up vote 7 down vote favorite 2 I want to the results of my benchmarks. I compare two virtual machines with each other and have data of the following form: BENCHMARK VM1_TIME VM1_ERROR VM2_TIME VM2_ERROR I want to generate a barchart diagram from this data which should look like this: Could somebody provide the code how
Histogram Gnuplot
to do this? I know this kind of request is unbeloved, but I really need this and googled for something like 2 hours, without a satisfactoring result. Thanks in advance, Sven gnuplot bar-chart share|improve this question asked Aug 19 '12 at 2:25 Sven Hager 1,14721022 1 What about sharing your data, or offering some mock data, to play with? –vaettchen Aug 19 '12 at 2:55 I do not have concrete data yet because I need to know in what format Gnuplot wants it. However, it is clear that I have 5 columns of data: 1) Benchmark name 2) Time it took VM 1 to compute it (in milliseconds) 3) Time it took VM 2 to compute it (in milliseconds) 4) Error of VM 1 times (in milliseconds) 5) Error of VM 2 times (in milliseconds) –Sven Hager Aug 19 '12 at 13:02 If you want help, you need to provide data in a way that can easily copied & pasted - dput( mydata ) is always good. It will also be a good idea to provide the code you have
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a minute: Sign up Gnuplot Histogram w/ Error Bars up vote 1 down vote favorite I'm trying to make a bar chart /histogram with Gnuplot but I cant seem to get the error bars to come out. This is my code: http://stackoverflow.com/questions/12023736/gnuplot-barchart-histogram-with-errorbars set style data errorbars set style histogram errorbars gap 2 lw 1 set style data histograms plot "ctcf.dat" using 2:3:3:xtic(1) and data: #Label Mean Error 168-B 24778.23544 33467.8754 168-S 34067.82997 35542.62473 168-B 22519.51553 30835.37332 168-S 112976.1825 143760.3467 But they come out wrong: What am I doing wrong? graphics gnuplot histogram share|improve this question asked Aug 28 '14 at 14:07 Charon 271221 add a comment| 1 Answer 1 active oldest votes up vote 1 down vote accepted When plotting histograms with errorbars http://stackoverflow.com/questions/25550866/gnuplot-histogram-w-error-bars you need to give only two columns in the using statement. The first column gives the box height, the second one is ±
30.34 22.58 161.08 2011-01-15 23.83 20.33 104.00 2011-01-22 50.50 16.17 79.75 2011-01-29 67.59 21.74 99.25 2011-02-05 37.58 33.33 155.33 2011-02-12 48.17 44.33 66.00 2011-02-19 89.34 12.42 91.42 2011-02-26 113.09 35.83 123.34 2011-04-02 174.25 105.25 221.25 2011-04-09 http://psy.swansea.ac.uk/staff/carter/gnuplot/gnuplot_histograms.htm 98.09 55.92 109.00 2011-04-16 98.67 30.83 202.00 2011-04-23 87.17 58.25 127.09 2011-04-30 139.74 67.33 232.84 2011-04-30 20.0 10.0 30.0 Note that there are two entries (the last two lines) for 2011-04-30; this is intentional (to demonstrate a point about time-based x values). As described in my page on time-based histograms, gnuplot does not support date/time values (as opposed to labels) for the x axis. Hence, there is no gap error bar where March should be, and 2011-04-30 appears twice in the following plots. Try using set xdata time and you'll see what I mean; you'll get the error message "need full using spec for x time data". Similarly, set timefmt and set xdata time will have no effect. The following plot commands are common to all four of the histograms shown in this page. clear reset unset key # Make gnuplot error bar the x axis labels easier to read. set xtics rotate out # Select histogram data set style data histogram # Give the bars a plain fill pattern, and draw a solid line around them. set style fill solid border Clustered With the clustered style, one column in the data file corresponds to one bar in the plot, whilst the lines of the data file correspond to the clusters of the bars. Thus, using the following plot commands, we get three bars in each cluster, and one cluster for each row (notice the two clusters for 2011-04-30, which is what we expect). set style histogram clustered plot for [COL=2:4] 'date_mins.tsv' using COL:xticlabels(1) title columnheader Figure 1: Clustered Histogram Note the use of the for feature. This allows us to select multiple columns (2 to 4, in this case); without the for, we'd only be able to plot one column of data (using something like plot 'date_mins.tsv' using 3:xticlabels(1)), which defeats the purpose of the clustered histogram: Errorbars The next histogram type is errorbars. For this, gnuplot can accept up to three columns for y values: the main value for the height of the bar, and a minimum and maximum value for the errorbar. Thus: # We need