Error Bar Plot Gnuplot
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by the various errorbar styles. In the default situation, gnuplot expects to see three, four, or six numbers on each line gnuplot error bar color of the data file -- either (x, y, ydelta), (x, y, gnuplot error bar width ylow, yhigh), (x, y, xdelta), (x, y, xlow, xhigh), (x, y, xdelta, ydelta), or (x, y, xlow, gnuplot bar graph with error bars xhigh, ylow, yhigh). The x coordinate must be specified. The order of the numbers must be exactly as given above, though the using qualifier can manipulate the order and
3d Plot Gnuplot
provide values for missing columns. For example, plot 'file' with errorbars plot 'file' using 1:2:(sqrt($1)) with xerrorbars plot 'file' using 1:2:($1-$3):($1+$3):4:5 with xyerrorbars The last example is for a file containing an unsupported combination of relative x and absolute y errors. The using entry generates absolute x min and max from the relative error. The y error bar contour plot gnuplot is a vertical line plotted from (x, ylow) to (x, yhigh). If ydelta is specified instead of ylow and yhigh, ylow = y - ydelta and yhigh = y + ydelta are derived. If there are only two numbers on the record, yhigh and ylow are both set to y. The x error bar is a horizontal line computed in the same fashion. To get lines plotted between the data points, plot the data file twice, once with errorbars and once with lines (but remember to use the notitle option on one to avoid two entries in the key). Alternately, use the errorlines command (see errorlines (p.)). The error bars have crossbars at each end unless set bars is used (see set bars (p.) for details). If autoscaling is on, the ranges will be adjusted to include the error bars. See also http://gnuplot.sourceforge.net/demo/mgr.htmlerrorbar demos. See plot using (p.), plot with (p.), and set style (p.) for more information. Next: Errorlines Up: Plot Previous: Zticlabels Contents Index Ethan Merritt 2007-03-03
ylow and yhigh, default format)" plot "err.dat" with errorbars will result in (gif mode) # this log plot gnuplot should look the same set title "Demonstration of error bars (both
Gnuplot X1y2
ylow and yhigh)" plot "err.dat" using 1:2:3:4 with errorbars will result in (gif mode) set title "Demonstration
Gnuplot Error Bars Style
of boxes" plot "err.dat" with boxes will result in (gif mode) set title "Demonstration of boxerrorbars" plot "err.dat" with boxerror will result in (gif mode) set title http://gnuplot.sourceforge.net/docs_4.2/node140.html "Demonstration of xybars" plot "err.dat" using 1:2:3:4:5 with xybars will result in (gif mode) set autoscale set title "Demonstration of error bars (both ylow and yhigh)" set xlabel "Date\nTime" set timefmt "%y%m%d" set xdata time set key right set format x "%m/%d\n%y" plot "futures.dat" using 2:3:4:5 with errorbars will result in (gif mode) set title http://www.csse.uwa.edu.au/programming/gnuplot_demos/errorbar/errorbar.html "Demonstration of financebars" plot "futures.dat" using 2:3:4:5:6 with financebars will result in (gif mode) set title "Demonstration of candlesticks" plot "futures.dat" using 2:3:4:5:6 with candlesticks will result in (gif mode) set xrange [-3:65] set yrange [ 4:14] set timefmt "" set xdata "" set xlabel "" set format x "" set tics set title "Demonstration of error bars (only ydelta)" plot "err.dat" using 1:2:5 with errorbars will result in (gif mode) set title "Plot data file twice to get lines and errorbars" plot "err.dat" with lines, "err.dat" using 1:2:3:4 with errorbars will result in (gif mode) set logscale y set title "Demonstration of error bars (only ydelta) with y logscale" plot [-3:65] [1:100] "err.dat" using 1:2:5 with errorbars set nologscale y will result in (gif mode) set logscale x set title "Demonstration of error bars (only ydelta) with x logscale" plot [1:100] [4:14] "err.dat" using 1:2:5 with errorbars set nologscale x will result in (gif mode) set autoscale set nologscale set title "" woo@playfair.stanford.edu
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more http://stackoverflow.com/questions/11347444/adding-error-bars-on-a-bar-graph-in-gnuplot about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users http://stackoverflow.com/questions/24871941/gnuplot-bar-chart-with-error-bars Badges Ask 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 up Adding error bars on a bar graph in gnuplot up vote 7 down vote favorite 2 I have the following file I want to plot using gnuplot bar error bar graphs: Function X X-ERROR Y Y-ERROR A 1.311539 0.066268 1.000000 0.000000 (a1,b0) 1.325429 0.083437 1.010926 0.016710 (a.9,.b1) 1.134640 0.040017 1.276168 0.060281 (a.8,.b2) 1.078336 0.058529 1.346358 0.054645 (a.7,.b3) 1.035866 0.060660 1.318395 0.018087 (a.6,.b4) 0.982717 0.047363 1.196714 0.047427 (a.5,.b5) 0.962423 0.051994 1.127991 0.044731 (a.4,.b6) 0.953673 0.046014 1.139608 0.044726 (a.3,.b7) 0.948948 0.050462 1.169209 0.044333 (a.2,.b8) 0.941013 0.047166 1.198138 0.045844 (a.1,.b9) 0.929961 0.057801 1.328111 0.088813 (a0,b1) 0.966331 0.036079 3.289381 0.213192 B 1.000000 0.000000 3.321802 0.121290 I can manage to plot the gnuplot error bar graph perfectly using: plot 'file.dat' using 4:xtic(1) title col, \\ '' using 2:xtic(1) title col; However I would like to use columns 3 and 5 to represent the interval of confidence that I always calculated. Any help? Thanks! gnuplot share|improve this question edited Jul 5 '12 at 15:25 Sirko 42.4k1069105 asked Jul 5 '12 at 15:20 Dynelight 7622833 add a comment| 2 Answers 2 active oldest votes up vote 9 down vote accepted Assuming you want to draw side-by-side bar charts with associated error bars, I would use the following: set xrange [-0.5:12.75] set xtic rotate by -45 set boxwidth 0.25 plot 'file.dat' using ($0-.05):4:5:xtic(1) with boxerrorbars title col, \\ '' using ($0+0.25):2:3 with boxerrorbars title col The idea is just to offset one of the two measures on the x-axis. share|improve this answer answered Jul 9 '12 at 10:47 chl 15.1k43557 This is exactly what I wanted!! Lemme test it real quick! –Dynelight Jul 12 '12 at 18:58 What does the '($0-.05)' in ($0-.05):4:5:xtic(1) represent? I know that '4' is telling the box to use the 4th column. '5' is telling the error bar to use the 5th column as the delta for the error bars. 'xtic(1)' is telling gnuplot to use the first column as the labels. –joseph Sep 30 '15 at 23:15 add a comment| up vote 0 down vote I think t
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask 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 up Gnuplot Bar chart with error bars up vote 1 down vote favorite I have the following data Name Value of the bar Confidence interval A 0.62 [0.59 0.63] B 0.64 [0.54 0.72] C 0.51 [0.46 0.67] D 0.33 [0.25 0.36] I tried to plot it as a bar chart with A,B,C and D labeling each bar and with and error bar. By using plot "my.dat" using 1; with boxes I only get a bar chart. Can someone help me? gnuplot bar-chart axis-labels share|improve this question asked Jul 21 '14 at 18:17 Samuel 475 add a comment| 1 Answer 1 active oldest votes up vote 1 down vote If you also want errorbars, you must add a second plot with the yerrorbars plotting style. The brackets aren't very handy in the data file, so I remove them with a sed command: set style fill solid set boxwidth 0.8 set yrange [0:*] unset key plot "< sed 's/[][]//g' my.dat" using 0:2:xtic(1) with boxes, \ '' using 0:2:3:4 with yerrorbars lc rgb 'black' pt 1 lw 2 share|improve this answer answered Jul 21 '14 at 19:21 Christoph 29.4k72847 Thank you! That's what I wanted. –Samuel Jul 22 '14 at 8:28 Is there any possibility to change the color of the bars? So that each bar has a different color or pattern (filled with dots or lines) –Samuel Jul 22 '14 at 16:05 Yes, you can use e.g. lc variable to color the bars based on some value (possible the row number): plot "< sed 's/[][]//g' my.dat" using 0:2:0:xtic(1) lc variable with boxes. –Ch