Fig. 2.

Behaviour of the symmetric weight generating function (SWGF) for a spectrum of values for the shape parameter, $k$, ranging from $k=50$ (blue) to $k=0.2$ (red), in intervals of $t=1,\mathrm{ }2,\dots ,\mathrm{ }70$, and for the different values of the bandwith $l=5,\mathrm{ }10,\mathrm{ }15$ (left to right). The black dashed lines show the hard windows corresponding to $l$. The grey dotted vertical lines show the window peaks. These plots show the capability of the WGF to generate different forms of the window