I have been trying to get the convlv function to work for use with savgol. I have however used vector<double> instead of Vec_DP. I'm guessing that I haven't not made an error in typing as all functions have been checked both by myself and others row for row without finding any differences. The book we are using is the one with 2.10 code printed in it. The output of convlv includes both positive and negative values whereas the input consists of a non negative spectrum and the savgol output (which are correct).

Hope someone can help or give some indication what the problem is.

thanks

Michael Gurnett