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
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