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<font face="Courier New">Dear All,<br>
<br>
I wonder why windowing functions such as Hann, Hamming, etc.,
provided by window(), are only symmetric.<br>
<br>
When used for spectral analysis by subsequent use of fft(), the
periodic weighting is better than the symmetric one. The symmetric
window is mainly used in the design of FIR filters, which I guess
is a less frequent application than spectral analysis.<br>
<br>
While it is true that an easy workaround to get a periodic window
of length n is, for instance<br>
<br>
w = </font><font face="Courier New">window("hn", n+1)(1:$-1); <br>
<br>
</font><font face="Courier New">a syntax such as this <br>
<br>
w = </font><font face="Courier New">window("hn", n, "per"); <br>
<br>
</font><font face="Courier New">would be easier.</font><font
face="Courier New"> Setting "sym" as the default option, no
backward compatibility issues would possibly arise.<br>
<br>
Regards,<br>
<br>
Federico Miyara<br>
</font>
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