On Mon, 31 Oct 2011, Justin Haynes wrote:
However, the dcast calls that "failed" can be helpful for determining the source of your error. I'd look at the outputs of those two dcast calls and find cells where the length is > 1. Those are duplicated entries in your initial data.frames (when I've run into this is was usually due to NA values somewhere unexpected).
Justin, I'll have to dig in the docs to see how to examine specific rows in the original data frames because I cannot find where duplicate entries were generated. In the dcast() results for the two problem data frames I found 1 row with a value of 2 in one and 8 rows each with a value of 2 in the other. When I look at the original database table, only one row is present for each of the 9. There are about 47.5K rows in the original R data frame so going through them one at a time is a problem. Have you any suggestion on how to examine the data frame and the melted data frame to see where the problems might be? Thanks, 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.
