Hello: I've been reading all the replies, and I think I have some good ideas to work on.
Right now the code I programmed is running, It has been running in a batch process 20h now, and It has imported 1750 rows out of 2000. I will read docs for the bioconductor package, and I will check the gawk option, as well as I will try (time consuming I guess) to transform variables in text format to numbers, and other options I have just read. I appreciate all ideas and hints, I've programmed time-consuming quite complex programs but I've never programmed one just for a simple task as to read a file. Finally, unfortunately I work on a 32bit Windows XP machine, so neither Linux or 64bit Windows... :-) Thanks for your help, Jose Lozano ------------------------------------------ Jose E. Lozano Alonso Observatorio de Salud Pública. Direccion General de Salud Pública e I+D+I. Junta de Castilla y León. Direccion: Paseo de Zorrilla, nº1. Despacho 3103. CP 47071. Valladolid. ______________________________________________ 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.