![]() In addition to that, its position can be specified by set key top left etc. Generally the legend is enabled by the set key command. P(x) title 'Theory' with lines linestyle 1 ![]() Title 'Power' with yerrorbars linestyle 2, \ In the last plot we will add theoretical data and a legend to the graph: Plot 'battery.dat' using 1:($2*1000):($4*1000) with yerrorbars linestyle 1įor achieving this we have to set brackets around the expression and reference the column data with $column_number. We can avoid the set format command in the last plot by directly manipulating the input data: 4 Plot of the data from battery.dat with y errors ( code to produce this figure) Therefore we add a second line to the plot command to combine the points with a line. Using the yerrorbars plotting style it is not possible to combine the points by a line. Since we want to plot the y errors and the data we need three columns in the first line of the plot command. Then in the plot command using tells gnuplot which columns from the data file it should use. Therefore we set the format option to tell gnuplot to use “mantissa to base of current logscale”, see gnuplot’s documentation. ![]() The power values are stored in Watt in the data file, but only has values lower than 1. Plot 'battery.dat' using 1:2:4 with yerrorbars linestyle 1, \ Here we want not only to plot the data, but also show the error for the y value (the data is stored in the format: x, y, xerror, yerror). Therefore we use the battery.dat file from gnuplots demo files that contains data about the dependence of the power of the battery on the resistance. 3 Plot of the data from plotting_data3.dat in two different styles ( code to produce this figure)Īnother common task is to plot data with errorbars. In the picture body, a font is designated by an index into this table.Fig. The first part of a Computer Graphics Metafile, the metafile description, includes a font table. Set terminal cgm color solid # no pesky dashes! font Set terminal cgm portrait "Times Italic" 12 Set terminal cgm 14 linewidth 2 14 # wider lines
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