Hello Jacqueline, > I have to "cut" the matrixes, they should have the same lenght (because > I need Data2-(Data1-mean(Data1)) , and starts at the comun hour. I dont > know how do it, Any suggest?
Do you have a problem with the resampling algorithm or with the data handling? Concerning the algorithm, I suggest you perform a kind of Savitzky-Golay smoothing of the biggest matrix : 1- define a, say 3rd degree polynomial by regression on a sliding of 5 points (must be an odd number), 2- keep the value of the polynomial corresponding to the data in the 1st matrix that lay in the sliding window. You cannot use the Savitzky-Golay convolution coefficients, as you are not necessarilly interested in the middle value. You can have an example of implementation here http://commons.wikimedia.org/wiki/File:Savitzky-golay_pic_gaussien_bruite.svg (look at the last solution; the first one uses the convolution coefficients). Hope this helps. -- Christophe Dang Ngoc Chan Mechanical calculation engineer This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error), please notify the sender immediately and destroy this e-mail. Any unauthorized copying, disclosure or distribution of the material in this e-mail is strictly forbidden. _______________________________________________ users mailing list users@lists.scilab.org http://lists.scilab.org/mailman/listinfo/users
