## 1.52.80 xlabel

    set <axis>label <text> [ rotate <angle> ]

The setting `xlabel` sets the label which should be written along the `x`-axis. For example,

    set xlabel '$x$'

sets the label on the `x`-axis to read ‘’. Labels can be placed on higher numbered axes by inserting their number after the ‘`x`’; for example,

    set x10label 'foo'

would label the tenth horizontal axis. Similarly, labels can be placed on vertical axes as follows:

    set ylabel '$y$'
    set y2label 'foo'

An optional rotation angle may be specified to rotate axis labels clockwise by arbitrary angles. The angle should be specified either as a dimensionless number of degrees, or as a quantity with physical dimensions of angle.