GNUPLOT HELP MANUAL

Now we might be happy to have generated this graph, but imagine we find a mistake later, it might be useful to get back to this point without having to retype everything into gnuplot. Link to see output file sin_graph.png Saving settings We need to supply a filename for the output, this is done using the command 'set out ', then simply replot the graph and voila! 'set term' gives a list of the different options for each terminal type. This tells us that we set the terminal type to png with the default options small and color. Next we want to set a title for the graph.Īlso we want to make the graph use polar coordinates, here the 'dummy' variable is 't' rather than 'x' so we type Īnd it wouldn't be a proper graph without labelling the x and y axes īy selecting a different terminal type, it is possible to output to a large number of graphic formats, you can get a full list by typing 'set term', lets ouput this graph using the png terminal (Portable network graphics). Link to image generated in first example 3. This should plot the graph of sin(x) to the screen, it is also possible to output to many different types of terminal using the term command. After you type the command as below, try with your favourite functions. We can now plot a function using the 'plot' command.

GNUPLOT HELP MANUAL

Type `help` to access the on-line reference manual Thomas Williams, Colin Kelley and many others If you are in the graphical environment then you will be able to output graphs from gnuplot directly to the screen (Note the example below tells us the terminal type is x11). If you are using unix/linux open a terminal (e.g. However you should still be able to find a version for your system for 'free' 1. First make sure gnuplot is available on your system - it is usually available in most linux distributions, or you can obtain the source code download (note gnuplot is not written by Gnu and is not totally free from copyright restrictions).

Gnuplot help