% imspect region=relpix,box(-4,-4,5,5)(10,50) for an xyvimage, makes a spectrum of image planes 10 to 50 integrated over the center 10 x 10 pixels in the x-y plane. For a vxy image where the x and y size is 128x128, the corresponding region=box(10,61,50,70)(61,70). Box refers image axes 1 and 2 for either vxy or xyv images. The default is the entire image.
and after Hanning smoothing. Useful for Zeeman enthusiasts.2deriv Take 2-sided derivative of spectrum before plotting. curve Plot the spectrum joining up the dots instead of the