On 06/20/2012 05:36 PM, Mikko Korpela wrote: > Hello list! > > Let's construct a matrix / data.frame with 0 columns, but > 0 rows, and > non-NULL rownames. Then, call is.na() on both the data.frame and the > matrix. We find that is.na.data.frame() gives an error. When row.names > are removed, is.na.data.frame() returns NULL. I think that the NULL > result is also wrong. From ?is.na: > > The method ‘is.na.data.frame’ returns a logical matrix with the > same dimensions as the data frame, and with dimnames taken from > the row and column names of the data frame. > > No problems are seen when is.na() is run on the matrix. What do you > think, should a formal bug report be filed?
Bug report filed to R bugzilla. -- Mikko Korpela Aalto University School of Science Department of Information and Computer Science ______________________________________________ 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.
