set xlab option
Controls the format of X-axis tick mark labels. The
option argument may be one of the following:
onlabeled tick marks are drawn with the default characteristics
offlabeled tick marks are not drawn
formatgives a C-language template for conversion of the label value to a string
If the X axis represents longitude, then the default behavior is to append an "E" or "W" to all tick mark labels depending on the hemisphere.
- Changes to the X-axis tick mark labels are reset by clear, but not display.
This command would cause all X-axis labels to have 2 digits after the decimal point:
set xlab %.2f