[R] Inverse transform after applying function in frequency domain?

Dear R-Help, I wish to simulate a process so that it has certain properties in the frequency domain. What I attempted was to generate a random time-series signal, use spec-pgram(), apply a function in the frequency domain, and then inverse transform back to the time-domain. This idea does not seem

[R] Relational Databases or XML?

Dear R-Help, I am working on a paper in an R course for large file support in R using scan(), relational databases, and XML. I have never used SQL or heirarchical document formats such as XML (except where it occurs without user interaction), and knowledge in RDBs and XML is lacking in my progr

Re: [R] Comparing Lagged Time Series

Dear j, I would probably use acf(). Also, set (or make sure you understand) the parameter 'lag.max'. See: >?acf Sincerely, KeithC. [U.S] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide