Loop in R to read many files

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Sys.glob() is another possibility – it’s sole purpose is globbing or wildcard expansion.

dataFiles <- lapply(Sys.glob("data*.csv"), read.csv)

That will read all the files of the form data[x].csv into list dataFiles, where [x] is nothing or anything.

[Note this is a different pattern to that in @Joshua’s Answer. There, list.files() takes a regular expression, whereas Sys.glob() just uses standard wildcards; which wildcards can be used is system dependent, details can be used can be found on the help page ?Sys.glob.]

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