Compresses a series horizontally in the current Window.
Optional. A real, the ratio of the current series horizontal dimension to the desired dimension. Defaults to 3/2, which makes the series appear 2/3 of its original size.
To return the Window to its original display, use the reciprocal ratio of the current value or EXPANDH with the same value or
The default argument accomplishes the same result as hitting
See AUTOSCALE to rescale the Window coordinates to the default setting.