gnuplot

问题 See this article Enclosed, but not Encrypted. I have some binary data. I want to perform the gnuplots shown in that article, but using my data. For a three-dimensional phase-space plot, the sequence a, b, c, d, e, f, etc. can be used as space coordinates (a-b, b-c, c-d), (b-c, c-d, d-e), (c-d, d-e, e-f), etc. Patterns in the plot created reveal recurring relations between subsequent sequences. In this phase plot, 50,000 16-bit random numbers would produce an unstructured cloud of dots. I want

问题 As the title suggests I want to place the plot legend below a multiplot graph. I add the legend for just one of the plots because the line styles are the same for all. The problem I encounter is that, if I add the key by set key below , the plots themselves get resized as to fit the (large) key inside the canvas. I would rather want to maintain the size of the plots. I tried adding the key as additional plot in the multiplot with set key inside , but then the key can overlap the plots if it

问题 Hey guys I'm trying to do a real heat map like in A true heat map in R, but in GNUPLOT. My file is like 3 1 2 3 4 3 3 5 5 4 1 7 4 1 2 4 4 3 4 5 2 5 1 3 5 1 2 5 4 3 . .. .... and I've tried with plot "file" using 1:2:3 with image splot "file" using 1:2:3 p3md etc.. Also I follow this example http://gnuplot.sourceforge.net/demo/heatmaps.html, but nothing. Can someone shed some light here please? Thanks 回答1: set pm3d interpolate 2,2 splot "file" You can adjust level of interpolation by changing

问题 How to perform control sequences under Gnuplot please? I need to make something like if (x == nan) set xrange[] else set xrange[10:30] I tried something like ( x > 100000 ) ? (set xrange[]) : (set xrange[10:30]) ... buth without success! I spent hours trying to solve this!! Any help please? At worst I can create a shell script an manage this, but I think there should be some control sequences to fix this. 回答1: For gnuplot 4.4.4 the if statement must be on a single line: if (x > 10000) set

问题 How to change point size and shape and color in gnuplot. plot "./points.dat" using 1:2 title with dots I am using above command to plot graph ,but it shows very small size points. I tried to use command set pointsize 20 but still point size is same. 回答1: Use the pointtype and pointsize options, e.g. plot "./points.dat" using 1:2 pt 7 ps 10 where pt 7 gives you a filled circle and ps 10 is the size. See: Plotting data. 回答2: The pointsize command scales the size of points, but does not affect

问题 I want to plot a 18x18 matrix with gnuplot. Here is my codes: set size ratio 1 set palette gray negative set xrange[-0.5:17.5] set yrange[-0.5:17.5] set cbrange[-0.2:0.8] set xtics 0,1,17 set ytics 0,1,17 set xtics offset -0.5,0 set title "Resolusition Matrix for E" plot "Mat" matrix w image noti Then I got a fig like this: Now I would like to add borders to each cell, which will look like this: Thank you. 回答1: For your case you can set one minor tic, which then lies on the border between two

问题 I would like to plot a series of vertical lines in gnuplot at a set interval. Some information about the plot. The plot is mainly some data from a .dat file. The gnuplot script is called by a bash scripts which alters the gnu plot script using sed. This is a snipit of the an old bash script (ugly I'm sure). sed -i 's/C = CONCEHOLD/C = '${$CO}'/g' $GNUPLOTROOT/plotviscosity.plt gnuplot $GNUPLOTROOT/plotviscosity.plt mv my-plot.ps $VISCPLOTNAME sed -i 's/C = '${$CO}'/C = CONCEHOLD/g'

问题 I found out that in gnuplot one can obtain multiple curves / datasets from a single file: splot "file.dat" using 1:2:3, splot "file.dat" using 1:4:5 Also one can embed data in a script like so: splot "-" using 1:2:3 1 0 1 1 2 3 0.5 3 1.5 However, the following seems not to work: splot "-" using 1:2:3, "-" using 1:4:5 1 0 1 4 4 1 2 3 3 4 0.5 3 1.5 2.5 -1 is this intentional, does a workaround exist or is it simply not possible? 回答1: The following script works with Gnuplot 4.4 as expected. The

问题 The figure has too many xtics and ytics. Can I have half of them? I know I can manually set tics in a way similar to this: set xtics (1,2,4,8,16,32,64,128,256,512,1024) But I feel it is not a general solution. You can not manually set tics for all figures. I have loads of them and the gnuplot code is automatically generated using Java. Here is the code for the figure: https://dl.dropboxusercontent.com/u/45318932/gnuplot2.plt Can you help lower down the number of x and y tics? 回答1: There is no

问题 The figure has too many xtics and ytics. Can I have half of them? I know I can manually set tics in a way similar to this: set xtics (1,2,4,8,16,32,64,128,256,512,1024) But I feel it is not a general solution. You can not manually set tics for all figures. I have loads of them and the gnuplot code is automatically generated using Java. Here is the code for the figure: https://dl.dropboxusercontent.com/u/45318932/gnuplot2.plt Can you help lower down the number of x and y tics? 回答1: There is no