I had the exact same error message, and figured out that the problem was coming from one of my cell being filled with a "Na" instead of a "NA". -- View this message in context: http://r.789695.n4.nabble.com/R-Error-very-odd-tp887545p4632492.html Sent from the R help mailing list archive at Nabble.com.
I received the same error message. With me, the problem was that I had the cells in my CSV file in Excel formatted as percentages. R read them as factors and not as numeric values. After changing the cell format from percentage to general in Excel, the problem was solved. -- View this message in context: http://r.789695.n4.nabble.com/R-Error-very-odd-tp887545p4670026.html Sent from the R help mailing list archive at Nabble.com.