gnuplot

问题 My question is very simple. Suppose I have a datafile with column headers, like as follows first second 1 1 2 1 3 6 4 9 In gnuplot how do i make it so that the datafile is plotted using the column header as axis label? e.g. by calling plot datafile using 1:2 i get the xaxis labeled first and the yaxis labeled second ? edit: I do know that I can use the column header as a key entry via set key auto title column head , however that's not quite what I'm looking for. 回答1: To elaborate the

问题 I have a data file separated by two lines. Each section of data is ~50 lines. I'm trying to make a .gif file. I know how to plot them individually or in a group but can't get the .gif to work. My problem is similar to the one worked out by Glen MacLachlan in his youtube channel, part 5. Instead of 1 point, I have ~50 data points for each data section. He solves the problem by utilizing $index feature, and I tried to do the same but mine doesn't work. What am I missing? Do I really have to

问题 I have a simple result table which I want to plot as a clustered histogram plot in gnuplot. The data set has the category of content type of a webpage and the corresponding percentage share in two columns. I have this for two browsers. For example, For IE, Content Share Video 30% Audio 10% Flash 25% HTML 20% Javascript 15% For Chrome, Content Share Video 20% Audio 5% Flash 35% HTML 30% Javascript 10% Now I want to plot these two data together with the Content Type in the x-axis and the

问题 After searching through all pipes to and inbuilt functions in gnuplot, I still haven't found a simple way to access the nth element of my datafile (not through increment, the single value) for use as a constant in a function (or parameter in a for loop) for my plots. For example I have a monotonic decreasing datafile with two columns and I want to normalize the y values while plotting so the y ranges from one (1) to zero (0) by subtracting the last value from each datapoint and dividing the

问题 Am using gnuplot 5.0. with the following as pereamble to each script: set terminal epslatex 8 color standalone colortext The issue is that gnuplot is skipping the first row. To my knowledge 4.6 version addressed a similar issue. Any idea on the problem please? Example of data file points.dat 4 4 4 -4 -4 4 -4 -4 The first line (4, 4) is skipped. So instead of four points, only three are displayed by gnuplot. Herewith the command am using #!/bin/bash set terminal epslatex 8 color standalone

问题 Am using gnuplot 5.0. with the following as pereamble to each script: set terminal epslatex 8 color standalone colortext The issue is that gnuplot is skipping the first row. To my knowledge 4.6 version addressed a similar issue. Any idea on the problem please? Example of data file points.dat 4 4 4 -4 -4 4 -4 -4 The first line (4, 4) is skipped. So instead of four points, only three are displayed by gnuplot. Herewith the command am using #!/bin/bash set terminal epslatex 8 color standalone

问题 How can I plot (a 3D plot) a matrix in Gnuplot having such data structure, using the first row and column as a x and y ticks (the first number of the first row is the number of columns) ? 4 0.5 0.6 0.7 0.8 1 -6.20 -6.35 -6.59 -6.02 2 -6.39 -6.52 -6.31 -6.00 3 -6.36 -6.48 -6.15 -5.90 4 -5.79 -5.91 -5.87 -5.46 回答1: Exactly this data format can be read in with matrix nonuniform : set view 50,20 set ticslevel 0 splot 'data.txt' matrix nonuniform with lines t '' This generates the correct tics,

问题 I'm plotting some data with a different X range and I would like to change yrange according to the maximum and minimum value of the data in the current X range. When I use GPVAL_Y_MAX and GPVAL_Y_MIN, these values correspond to the maximum and minimum of the whole data, not just the data in the range. For example, I have the following data: 1 3 2 5 3 8 4 20 5 30 I use the following script: plot 'data.txt' u 1:2; set xrange [1:3]; replot set xrange [1:5]; replot In the first plot I would like

问题 I need to place a label at the right, above of a fitted average horizontal rule. I have an y-coordinate of the rule, but i don't know the coordinate of the right border of the graph. I saw, I could use at graph 0.5,0.8 syntax, only if the horizontal rule would be fixed, which it isn't. 回答1: You can use different coordinate systems for x and y values. The available coordinate systems are: first : value on the left and bottom axes. second : value on the right and top axes. graph : relative to

问题 I have been trying very unsuccessfully to stack 3 graphs together in a multi-plot layout on a canvas that is a ratio of 2:3(width by height). set terminal postscript eps enhanced "Helvetica" 24 color set output "data.eps" set timefmt "%s" #set size 1.0,1.5 #set bmargin 2 #set tmargin 2 set size 1.0,1.5 set multiplot layout 3,1 set size 1.0,0.5 set tmargin 2 set bmargin 0 set ylabel 'Distance' set format x "" set ytics nomirror font "Helvetica,10" set key top plot "trace1.dat" using 1:3 axes