search for: do_match

I'm doing m <- match(matriz, origen, 0) where matriz is a 270x900 matrix and origen a 11675 elements vector, and is taking a very long time. Is match a function implemented in C? If not, would a C code be faster? Thanks Agus Dr. Agustin Lobo Instituto de Ciencias de la Tierra (CSIC) Lluis Sole Sabaris s/n 08028 Barcelona SPAIN tel 34 93409 5410 fax 34 93411 0012 alobo at ija.csic.es

Hi, Summary: I ran into some unexpected behavior in approx() and tapply() that introduced NA's in "clean" data due to (?) numerical accuracy/round off. The culprit seems to be in match() that coerces it's arguments to character, loosing precision in the process. [R development version 1.2.0, 08 Nov 2000, on Linux] Example: > r > [1] 0.6931472 0.6931472 0.6931472

Hi, Summary: I ran into some unexpected behavior in approx() and tapply() that introduced NA's in "clean" data due to (?) numerical accuracy/round off. The culprit seems to be in match() that coerces it's arguments to character, loosing precision in the process. [R development version 1.2.0, 08 Nov 2000, on Linux] Example: > r > [1] 0.6931472 0.6931472 0.6931472