wavedec function and NaN

Started by Christopher Bay October 7, 2003
Can anyone tell me why the 'wavedec' function in the wavelet toolbox
might return approximation coefficients that have the value NaN? I
don't know any reason why these coefficients should be anything other
than real numbers, and the data that I'm using contains relatively small
values, so that the coefficients will always be machine-sized. Thanks
in advance.