From: Eric Turkheimer <ent3c_at_virginia.edu>

Date: Mon, 07 Jul 2008 17:07:15 -0400

Date: Mon, 07 Jul 2008 17:07:15 -0400

I am wondering if it is possible to perform the following two basic
functions with primitive R functions. I know I could write functions for
either, but it seems as though they are probably built-in somewhere.

- Fill out a vector to a desired length with missing values or zeros. So,

x<-c(3,4,5)

f(x,5)

3,4,5,NA,NA

2) Find the [row,col] location of a particular value in a matrix, eg

x<-matrix(1:9,ncol=3)

f(x,2)

2,1

Thanks.

-- Eric Turkheimer, PhD Department of Psychology University of Virginia PO Box 400400 Charlottesville, VA 22904-4400 http://www.people.virginia.edu/~ent3c 434-982-4732 434-982-4766 (FAX) [[alternative HTML version deleted]] ______________________________________________ R-help_at_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.Received on Mon 07 Jul 2008 - 21:10:54 GMT

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