nuncio, If you already have a filter kernel, you can use the filter function. Of course, convolution filters can be applied directly using the discrete Fourier transform via the fft function. For an example of filtering (lowpass) with R, see http://biostatmatt.com/archives/78 , and the associated R script linked there. Also see the link to a free downloadable book by Steven Smith, which discusses the DFT and building filter kernels.
-Matt On Sat, 2010-08-14 at 23:52 -0400, nuncio m wrote: > Hello list, > Is there any way to bandpass filter in R > thanks > nuncio > -- Matthew S. Shotwell Graduate Student Division of Biostatistics and Epidemiology Medical University of South Carolina ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
