Error Bars In Gnuplot Example
Contents |
ylow and yhigh, default format)" plot "err.dat" with errorbars will result in (gif mode) # this gnuplot xyerrorbars should look the same set title "Demonstration of error bars (both gnuplot error bars and lines ylow and yhigh)" plot "err.dat" using 1:2:3:4 with errorbars will result in (gif mode) set title "Demonstration gnuplot yerrorbars 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 gnuplot tutorial "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
Gnuplot Error Bars Histogram
"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
3-d surfaces and data. Syntax: plot {ranges} {
Gnuplot Error Bars Color
{style} {,
the last entry we had mean and standard variation data for five different conditions. Now let us assume that we have only two different conditions, but have measured with three different instruments A, B and C. We have used a ANOVA to verify that the data http://www.gnuplotting.org/tag/errorbars/ for the two conditions are significant different. As a result the plot in Fig. 1 should http://superuser.com/questions/272389/plotting-error-bars-with-gnuplot be created. Fig. 1 Plot the mean and variance of the given data (code to produce this figure) Therefore we store our data in a format, that can be used by the index command in Gnuplot. Note that the data have two empty lines between the blocks in the real data file: # mean std # A 0.77671 0.20751 0.33354 0.30969 # error bars B 0.64258 0.22984 0.19621 0.22597 # C 0.49500 0.31147 0.14567 0.21857 Now every instrument is stored in a different data block containing both conditions as columns. The color definitions and axes settings are done in a similar way as in the previous blog entry. Note that we have to define two more colors for the boxes, because we use three different colors. Also we define a black line to plot the significance indicator (arrow). set style line 1 lc plot error bars rgb 'gray30' lt 1 lw 2 set style line 2 lc rgb 'gray40' lt 1 lw 2 set style line 3 lc rgb 'gray70' lt 1 lw 2 set style line 4 lc rgb 'gray90' lt 1 lw 2 set style line 5 lc rgb 'black' lt 1 lw 1.5 set style fill solid 1.0 border rgb 'grey30' The significance indicator is created by three black arrows and a text label: # Draw line for significance test set arrow 1 from 0,1 to 1,1 nohead ls 5 set arrow 2 from 0,1 to 0,0.95 nohead ls 5 set arrow 3 from 1,1 to 1,0.95 nohead ls 5 set label '**' at 0.5,1.05 center For the plot the index command is used to plot first condition A, then B and then C by using block 0,1, and 2 respectively. The x-position of the boxes for instrument A are slightly shifted to the left, the ones for C to the right by subtracting or adding the value of bs. The value of bs has the width of one box in order to plot the boxes side by side. # Size of one box bs = 0.2 # Plot mean with variance (std^2) as boxes with yerrorbar plot 'statistics.dat' i 0 u ($0-bs):1:($2**2) notitle w yerrorb ls 1, \ '' i 0 u ($0-bs):1:(bs) t 'A' w boxes ls 2, \ '' i 1 u 0:1:
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 Super User Questions Tags Users Badges Unanswered Ask Question _ Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Plotting Error Bars with GNUPLOT up vote 3 down vote favorite 1 I can't get gnuplot to make a plot with error bars when my x values are non-numeric. For an example "data.dat": day col1 col2 MONDAY 12 4 TUESDAY 10 3 WEDNESDAY 9 2 THURSDAY 11 3 FRIDAY 9 2 SATURDAY 12 3 SUNDAY 8 2 I've tried variants of plot "./data.dat" using 2:3:xtic(1) with yerrorlines plot "./data.dat" using 2:3:xtic(1) with yerrorlines plot "./data.dat" using 1:2:3 with yerrorlines And get back either Not enough columns for this style or warning: Skipping data file with no valid points x range is invalid What would the plot command be to plot (day,col1,col2) => (x,y,y_err)? gnuplot share|improve this question asked Apr 18 '11 at 15:39 Andrew Wood 5541618 add a comment| 1 Answer 1 active oldest votes up vote 4 down vote accepted xtic, or xticlabels, does not count as a data column. That is why yerrorlines is complaining about not enough columns. You can provide the implicit column 0 for an enumeration. plot "./data.dat" using 0:2:3:xticlabels(1) with yerrorlines share|improve this answer answered Apr 18 '11 at 19:34 lesmana 8,33742635 1 And when not using with yerrorlines there is an implicit column 0 when plot doesn't have enough columns? Odd... –Andrew Wood Apr 19 '11 at 12:53 add a comment| You must log in to answer this question. Not the answer you're looking for? Browse other questions tagged gnuplot . asked 5 years ago viewed 5927 times active 5 years ago Related 4Specifically marking a point in gnuplot1Plotting function defined in a piecewise manner with Gnuplot6Plotting Pairs of Ordered Pairs in Gnuplot18In gnuplot, how to plot with lines but skip missing data points?0gnuplo