NA rownames in dataframes
It's a bug in data.frame. You should not be allowed NA rownames. Solution: don't specify them. I'll add a test for 1.6.0.
On Wed, 28 Aug 2002, Yi, Derek wrote:
Hey everyone! I am seeing strange behavior with NA in the rownames of dataframes:
a <- data.frame(1:3, row.names = c("r1", NA, "r3"))
cbind(a)
X1.3 r1 1 <NA> 2 r3 3 Everything works. The peculiar thing is that when the NA is in the first row, things no longer work as I would have expected:
b <- data.frame(1:3, row.names = c(NA, "r2", "r3")) cbind(b)
Error in if (missing(row.names) && (nrows[i] > 0) && (rowsi[[1]] != "")) row.names <- data.row.names(row.names, : missing value where logical needed
data.frame(b)
Error in if (missing(row.names) && (nrows[i] > 0) && (rowsi[[1]] != "")) row.names <- data.row.names(row.names, : missing value where logical needed
traceback()
3: data.frame(..., check.names = FALSE) 2: cbind(...) 1: cbind(b) This seems to be a problem associated only with dataframes, as a similar example using matrices works perfectly fine. Has anyone experienced this behavior before? Thanks! Derek
R.version
_ platform sparc-sun-solaris2.6 arch sparc os solaris2.6 system sparc, solaris2.6 status major 1 minor 5.1 year 2002 month 06 day 17 language R -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._
Brian D. Ripley, ripley at stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272860 (secr) Oxford OX1 3TG, UK Fax: +44 1865 272595 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._