Dear R users,
When dumping an R matrix object into a file -- typically via the 'write.table'
function -- the 'eol' option can be used to specify the end-of-line
character(s) which should appear at the end of each row.
However the argument to 'eol' seems to be restricted to have length 1, whereas
ideally I would like different rows to be written to file each with its own end
character string. For instance:
> test <- matrix(1:12, nrow=4); test
[,1] [,2] [,3]
[1,] 1 5 9
[2,] 2 6 10
[3,] 3 7 11
[4,] 4 8 12
> write.table(test, file="test.txt", sep=" ", eol=paste(" test", 1:4, "\n",
> sep=""))
> read.table(file="test.txt", sep=" ")
V1 V2 V3 test1
1 1 5 9 test1
2 2 6 10 test1
3 3 7 11 test1
4 4 8 12 test1
whereas I would like the last column of the dump file to be "test1", "test2",
"test3", "test4". Is there a way this could be achieved? With many thanks in
advance for your help, kind regards,
--
Dr Stefano Conti
Statistics Unit (room #2A19)
Health Protection Services
HPA Colindale
61 Colindale Avenue
London NW9 5EQ, UK
tel: +44 (0)208-3277825
fax: +44 (0)208-2007868
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