Uwe Ligges wrote:
Consider the following data.frame:
> testdata
date nothing
1 1991-12-31 NA
2 1991-12-31 NA
where date is of class POSIXlt. For easy reproducibility:
"testdata" <- structure(list(date = structure(list(sec = c(0, 0),
min = c(0, 0), hour = c(0, 0), mday = c(31, 31), mon = c(11, 11),
year = c(91, 91), wday = c(2, 2), yday = c(364, 364),
isdst = c(0, 0)), .Names = c("sec", "min", "hour", "mday", "mon",
"year", "wday", "yday", "isdst"), class = c("POSIXt", "POSIXlt")),
nothing = c(NA, NA)), .Names = c("date", "nothing"),
row.names = c("1", "2"), class = "data.frame")
write.table() fails in this case:
write.table(testdata, file="test.dat")
Error in as.matrix.data.frame(x) : dim<- length of dims do not match the
length of object
and
write.table(testdata[1,], file="test.dat")
Error in as.matrix.data.frame(x) : length of dimnames[2] not equal to
array extent
I don't have the time to debug it right now, hence filing it as a bug
report.
OK, after having spent a few minutes I do not have: The bug is obviously in as.matrix.data.frame() as the error message had told me (I should have seen this yesterday at once). I cannot really suggest anything, since some of the constructs within as.matrix.data.frame() seem to be rather strange. For sure, at least some of those are intended, but unfortunately the code lacks of comments. Uwe Ligges
Uwe Ligges
_
platform i386-pc-mingw32
arch i386
os mingw32 (Windows NT 4.0)
system i386, mingw32
status Beta
major 1
minor 7.1
year 2003
month 06
day 11
language R