> Maybe you've not lurked on R-help for long enough :) Apologies! Probably.
> So, how much "design" is in this data? If none, and what you've > basically got is a 2000x500000 grid of numbers, then maybe a more raw Exactly, raw data, but a little more complex since all the 500000 variables are in text format, so the width is around 2,500,000. > http://cran.r-project.org/web/packages/RNetCDF/index.html > http://cran.r-project.org/web/packages/hdf5/index.html Thanks, I will check. Right now I am reading line by line the file. It's time consuming, but since I will do it only once, just to rearrange the data into smaller tables to query, it's ok. > Thinking back to your 4GB file with 1,000,000,000 entries, that's > only 3 bytes per entry (+1 for the comma). What is this data? There > may be more efficient ways to handle it. Is genetic DNA data (individuals genotyped), hence the large amount of columns to analyze. Best Regards, 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.
