[R] An embarrassment of riches

From: Thomas L Jones <DrJones_at_alum.MIT.edu>
Date: Mon 02 Jan 2006 - 19:55:29 EST

I have a dataset which I am trying to smooth, using locally weighted regression. The y values are count data, integers with Poisson distribution, and it is important for the regression function to know this, since assuming a Gaussian distribution will lead to substantial errors. It is a time series; the x values have equal five minute intervals.

Here is the problem: I have an embarrassment of riches. Unless I am mistaken, the following R packages will do this: locfit, aws, sm, gss, semipar, pgam, gregmisc, to name just a few. Questions: Which package should I use, and which function in the package should I use for the regression?

Here is the Google search result, restricted to r-project.org:


If the above hyperlink does not work, please try http://tinyurl.com/exw7e


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