#Splot gnuplot how to#
#Splot gnuplot mac os x#

It’s fun and easy to plot formulas with Gnuplot: You can create ASCII plots in your Mac Terminal window: That series of commands creates this chart: Unset multiplot # exit multiplot mode (prompt changes back to 'gnuplot') Set multiplot # multiplot mode (prompt changes to 'multiplot')

#Splot gnuplot how to#

How to show multiple graphs in the output: Plot sin(x) title 'Sine Function', tan(x) title 'Tangent' Plot '4col.csv' u 1:2 w l title 'Square', '4col.csv' u 1:3 w l title 'Double' Plot '4col.csv' using 1:2 with lines title 'Square', '4col.csv' using 1:3 with lines title 'Double'

The second command shown creates this chart: Plot '4col.csv' using 1:2 with lines, '4col.csv' using 1:3 with lines, '4col.csv' using 1:4 with lines Plot '4col.csv' using 1:2 with lines, '4col.csv' using 1:3 with lines To show multiple curves on one plot, use the 4col.csv file:

You can adorn your plots with titles, labels, legend, arrows, and more: Plot '2col.csv' u 1:2 w l title 'Squared' # 'u' - using, 'w l' - with lines Plot '2col.dat' using 2:1 # 2=x, 1=y (reverse the graph) Plot '2col.dat' using 1:2 # 1=x, 2=y (this is the default) Plot '2col.dat' with lines title 'my curve' # this is really the line-title in the legend Plot '2col.dat' with linespoints # plot only elements 3 thru 7 Plot '2col.dat' with linespoints # plot the first 5 elements Plot '2col.dat' with points # just points (default) Plot '2col.dat' with linespoints # line and points Plot '2col.dat' with lines # connect points with a line Plot '2col.dat' # assumes col1=x, col2=y shows '+' at data points Opens plot in an ’AquaTerm’ on Mac OS Xįrom here you can do all sorts of fun things:.Assumes col1=x, col2=y shows ’+’ at data points.Plotting the data from a two-column file is easy: It prompts you with gnuplot> as shown, but I won’t show that prompt in the examples below. The latest version of Gnuplot works with both formats without requiring you to specify a column-separator. Note that the columns in the first file are separated by whitespace, and the columns in the second file are separated by commas (a CSV file). The examples below use the following 2-column and 4-column data files: You can find more information about the need for this new brew command at this SO link. Please select a terminal with 'set terminal'. WARNING: Plotting with an 'unknown' terminal. You’ll know that you need that command if you get this error message when you try to run a plot command inside the gnuplot command line:

Note that with OS X Yosemite (10.10.x) I had to use this brew command instead:

#Splot gnuplot mac os x#

To get started, you can use MacPorts or Homebrew to install Gnuplot on Mac OS X systems: If you haven’t used it before, it’s an amazing tool for creating graphs and charts. I needed to use Gnuplot a little bit over the last few days, mostly to create 2D line charts, and these are my brief notes on how to get started with Gnuplot.