[R] pair matching query corrected

I posed this question imprecisely earlier and did not specify that the pairing needs to be one-to-one. A precise version of the question follows: Given two numeric vectors of possibly unequal length, I'd like to pair each element of the shorter vector with an element of the longer vector

Re: [R] pair matching

ar2)^2 ) head(df[order(df$dist),], min(length(a),length(b)) ) Var1 Var2 dist 2 2 2 0 6 3 3 0 1 1 2 1 -- David Winsemius - Original Message - From: "Thomas S. Dye" To: r-help@r-project.org Sent: Tuesday, May 12, 2009 10:02:29 AM GMT -08:00 US/Canada Pacific Subject: [R

Re: [R] pair matching

If the matching need not be one-to-one, then you can just compute the Euclidean distances between the two vectors, then in each row (or column, which ever corresponds to the shorter vector) and find the smallest. This should be fairly easy to do. Andy From: Thomas S. Dye > > Given two numeric

[R] pair matching

Given two numeric vectors of possibly unequal length, I'd like to pair each element of the shorter vector with an element of the longer vector such that the sum of squared differences between the pairs is minimized. Can someone point me to an R function or an algorithm for accomplishing th