Hello, For insect mortality data I'm trying to get an R script that will take the data from the raw form and convert it to Lx (% survival) for a number of treatments. The raw data has the number of days lived for each individual for the respective treatment. Thus, for example, when R selects the data for a single treatment I end up with the following vectors:
>day=seq(from=0,to=6) >deaths=c(0,0,2,0,0,1,6) where deaths is the number of deaths on a given day. Now I need to create a new vector with the number alive for each day and this is where I'm stuck... I've tried to work various for and while loops but haven't had success. The vector should be: >Alive=c(9,9,7,7,7,6,0) I realize it is a very basic problem that is easily accomplished in one's head or on a spreadsheet but in the context of the size of the data set I wish to have R do it for me. I would welcome any suggestions please. Best regards. ______________________________________________ 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.