There are a few different options depending on what you are trying to do. If you just need some data pairs (for plotting for example), then the return from density has a vector of x's and a vector of y's, just use those.
If you have specific x values that you need the height at and they follow a regular pattern, then you can modify the from, to, and n parameters to generate your x values, then they are in the return value. You can approximate the values by passing the x and y from the return of density to the functions approx or approxfun. You can estimate the density in a different way using the logspline package, it provides functions to give you the height of the curve at specified values. You can just add the kernels together at your specified x values instead of using density (search the archives, I think Prof. Ripley recently posted a function to do this or similar). -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.s...@imail.org 801.408.8111 > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- > project.org] On Behalf Of madr > Sent: Tuesday, December 07, 2010 11:28 AM > To: r-help@r-project.org > Subject: [R] how to get vector of data from line ? > > > I have created a density line > d<- density(X) > now I need to read values from that line > > for example what is the value of this line at x = 1, 2, 3 etc... > -- > View this message in context: http://r.789695.n4.nabble.com/how-to-get- > vector-of-data-from-line-tp3076943p3076943.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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. ______________________________________________ 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.
