Re: [R] Creating variables on the fly

I'm going to assume that Kunden is a data frame, and it has columns (variables) with names like Umstatz_2011 and that you want to create new columns with names like Kunde_real_2011 If that is so, then try this (not tested): for (year in 2011:2015) { nmK <- paste0("Kunde_real_", year) nmU

Re: [R] Creating variables on the fly

Hi Georg, The " around Kunden$* looks unintentional to me. Second: haveyou considered using a long table? Then you would fill a known set of columns. Third if you must have columns based on year I believe df[[a.column.name]] will work. Best Ulrik schrieb am Sa., 23. Apr. 2016 07:33: > Hi a

Re: [R] Creating variables on the fly

The direct answer to your question is to look at ?get and ? assign. The R-ish answer to your question is to store the data as elements of a list rather than separate files and use lapply() instead. Sarah On Friday, April 22, 2016, wrote: > Hi all, > > I would like to use a loop for tasks that

[R] Creating variables on the fly

Hi all, I would like to use a loop for tasks that occurs repeatedly: # Groups # Umsatz <= 0: 1 (NICHT kaufend) # Umsatz > 0: 2 (kaufend) for (year in c("2011", "2012", "2013", "2014", "2015")) { paste0("Kunden$Kunde_real_", year) <- (paste0("Kunden$Umsatz_", year) <= 0) * 1 +