On Mon, 31 Oct 2011, Rich Shepard wrote:
Curious how the database table has a value of 1.00 mg/L and the read data frame contains NA. More curious is why the cast() data frame has a '2' for that row.
Further searching in emacs of the text file generated by write.text() I found two rows for the same values in the columns site, sampdate, and param. Since a select query on the database table returns only one row I cannot explain how the R data frame has 2 rows. Regardless, thanks to Justin's suggestions, I've fixed one subset data frame and will now fix the other. Rich ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
