Good morning My compliments to all.
Since I'm a newbie on R, I was wondering if you could help me to achieve a small project that I think it's possible with this project (I cant seem to find a similar tool) I have a data file with about 2000 value lines, organized like this: x;y;z;j; ... I want to find diferent correlations (linear regression with Levenberg–Marquardt or least squares) between the x values and a y or z pair. For instance, between x and y. So, what I'm trying to do is: 1) Load the file (is there a limit on the load size? If yes, can I load it in sequence by parts?) 2) Define 100 sets of 20 values each (also sequence, from x1 to xn: first from x1 to x20, next from x21 to x41, etc.) or process one set at the time in case of file limits in 1) 3) Define a fitting function 4) Use the same function model to find the best fit for each set 5) Save in a file, the coefficients of those fits. Can this be done accurately with R? It would save me a lot of programming. The files will soon have about 1 million lines, which is a lot to process. I would apreciate very much if someone could help me. Kind regards Kepler [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.