Thanks Francisco; I'm trying to avoid the step of converting a dist object into a matrix because I'm working with matrices of more than 5000 rows x 5000 columns. I just was wondering if someone knew any trick to do that.
On 5/11/07, Francisco J. Zagmutt <[EMAIL PROTECTED]> wrote: > But the dist object is not structured with rows and columns. i.e. > > x=1:4 > > d=dist(x) > 1 2 3 > 2 1 > 3 2 1 > 4 3 2 1 > > str(d) > Class 'dist' atomic [1:6] 1 2 3 1 2 1 > ..- attr(*, "Size")= int 4 > ..- attr(*, "Diag")= logi FALSE > ..- attr(*, "Upper")= logi FALSE > ..- attr(*, "method")= chr "euclidean" > ..- attr(*, "call")= language dist(x = x) > > So, AFAIK if you want to get references for rows and columns you need to > make it an object that indeed has rows and columns, i.e. a matrix. See > ?which to obtain the reference you want in a matrix. > > Regards, > > Francisco > > > Pedro Mardones wrote: > > Dear R users; > > > > Is it possible to get the row and column number of a particular entry > > in a dist object? > > > > Let's say that I want to find the position of the value 1.1837 (the > > last entry on the dist object below), that is [6,3]. Can I get those > > values without transforming the object to a matrix?, i.e. working with > > the dist object only. > > > > 1 2 3 > > 2 0.23935864 > > 3 0.56655914 0.71923104 > > 4 0.15272561 0.37926989 0.43931332 > > 5 0.17728654 0.13355685 0.73025495 > > 6 0.61783536 0.52055379 1.18374889 > > > > Thanks for any idea > > PM > > > > ______________________________________________ > > [email protected] 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. > > > > ______________________________________________ > [email protected] 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. > ______________________________________________ [email protected] 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.
