Hi all, Again I have searched the net and so on, without finding an answer to this surely simple problem. A short bit of code would be appreciated.
I have a object named `data' with the following column headings. Date, maxitemp, minitemp, admissions, d.o.w. Where d.o.w. is day of the week, written "Sun" "Mon" etc. I just need to scale the Monday admissions by 0.91, the Saturday admissions by 1.21 and the Sunday admissions by 1.22. So basically what I want is: If d.o.w. == "Sat" Multiply Sat admissions by 1.21. (Now do I need an else statement here, or can I just do another) If d.o.w. == "Sun" Multiply "Sun" admissions by 1.22 (and finally) If d.o.w. == "Mon" Multiply Monday admissions by 0.91. Else do nothing. I assume in my code I need to specify that I am using the data.frame `data', so do I need to write things like If(data[d.o.w.]=="Mon") I would then like to round the new admissions to integers (I assume I just use round(data$admissions)), and output the new data to another csv file. I could of course do this in excel but I will need to extend this type of idea in the future so I would like to master it in R. Many thanks for any help/code. Robin Williams. [[alternative HTML version deleted]] ______________________________________________ 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.