8.27.23 linewidth

set linewidth <value>

Sets the default line width, in units of pt (1 pt = 1/72 inch), of the lines used to plot datasets onto graphs with the lines plot style. For example in the following statement:

set linewidth 3
plot sin(x) with lines

lines of three times the default thickness are plotted. The set linewidth setting only affects plot statements where no line width is manually specified.