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I have a dataframe, and for each row in that dataframe I have to do some complicated lookups and append some data to a file. The dataFrame contains scientific results for selected wells from 96 well plates used in biological research so I want to do something like: for (well in dataFrame) { wellName <- well$name # string like "H1" plateName <- well$plate # string like "plate67" wellID <- getWellID(wellName, plateName) cat(paste(wellID, well$value1, well$value2, sep=","), file=outputFile) } In my procedural world, I'd do something like: for (row in dataFrame) { #look up stuff using data from the row #write stuff to the file } What is the "R way" to do this?
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