This third-party program allows to plot the diffractogrammes. To execute it, just type gnuplot at the linux prompt.

prompt> gnuplot

gnuplot>

For more information and help visit the gnuplot web site.

gnuplot> plot 'data.dat'

Plots the file data.dat using first and second columns as x,y axis.

gnuplot> set data style l

gnuplot> set data style p

gnuplot> set data style d

gnuplot> set data style lp

Sets the symbol for plotting curves, with lines, points, dots, or combinations of them, like 'lp' for lines and points.

gnuplot> load 'file.gnu'

gnuplot> load 'prhalf.gnu'

Loads a command file for gnuplot named file.gnu. This is useful for printing as with prhalf.gnu, which prints out the plot on the default printer. In your working directory you will find other pr*.gnu files for printing.

gnuplot> plot 'data.dat' w e

Plots the file data.dat using the third column as error bars.

gnuplot> plot 'data.dat' u 1:($3/$2*100)

Plots percentual error (3rd col/2nd col*100) as a function of 1st column.