Wow, thank you all for advice, I'll have to get more familiar with R. The dist() fuction is probably the right way. Filip Kral.
Erin Hodgess-2 wrote: > > Suppose you have: > >> x <- runif(25) >> y <- rnorm(25) >> x.df <- data.frame(x,y) >> dist(x.df) > > > The default is euclidean distance. > > Hope this helps! > > Sincerely, > Erin > > > On Jan 20, 2008 2:41 PM, WCD <[EMAIL PROTECTED]> wrote: >> >> Hello, I want do get the point to point distance matrix. >> Suppose, I have a data frame where the first column is X and second >> column >> is Y coordinate of points. >> I define a function dst(x1,y1,x2,y2) to claculate distance between two >> points. But I don't know how to tell R to calculate dst for every two >> points >> and create a matrix of these distances. >> >> Can you give me a little guidance, please? I am quite new to R and >> programming. >> Thanks for every advice. Filip Kral. >> >> -- >> View this message in context: >> http://www.nabble.com/distance-matrix-tp14986595p14986595.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. >> > > > > -- > Erin Hodgess > Associate Professor > Department of Computer and Mathematical Sciences > University of Houston - Downtown > mailto: [EMAIL PROTECTED] > > ______________________________________________ > 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. > > -- View this message in context: http://www.nabble.com/distance-matrix-tp14986595p14987085.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.