Rotating axes labels

The command to rotate the labels in one of the axis is:

• set <axis>tic rotate by <angle> scale <size>

The parameter scale must be a number and accounts for the size of the tics in the selected axis.
Example:

• set xtic rotate by 90 scale 0.5

Caution: Be careful when rotating an angle non multiple of 90 because it can lead to non desired effects.