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...my R code, and if my data is not a table I become in my R console : fail in scan. So the question is how to check the nature of the file? something like : is.table? I don't know the function. Thanks for any help Adel -- View this message in context: http://www.nabble.com/read-and-check-table-tp18532292p18532292.html Sent from the R help mailing list archive at Nabble.com.