void set_label_align(double xalign, double yalign);

This method may be used to control the alignment of the frame's label. Two parameters are passed to the function, both are numbers varying from 0 to 1. xalign determines the horizontal alignment of the label (0 will imply the left most corner) and yalign determines the vertical alignment (0 here, implies that the label will be appear on top the frame's top border).

See also: get_label_align()