If the arguments are not 1-dimensional, then they are unravelled. Use the PLOT_CONTOURS and PLOT_SURFACE procedures if you wish to plot 2-dimensional matrices.
[These arguments are mandatory. No default is supplied.]
If they are omitted, they will be replaced by the name of the global variable that corresponds to x_vector and y_vector, if these vectors are simple variables. Otherwise, they are set to `x` and `y`.
To leave the label field blank, you need to specify ` ` as label.
[The title is left blank if omitted.]
The labels are shown using the text representation LABELS.
The title is shown using the text representation TITLE.
Formatted on 21/01/18 at 16:55.