Hi
I'm having a problem using the zoo library and I can't see what I'm
doing wrong. For example setting up the data
> t1 = zoo (matrix (1:12, nrow = 3), order.by = as.Date
(c("2008-08-01","2008-08-02","2008-08-03")))
> colnames (t1) = c ("A", "B", "C", "D")
> t2 = zoo (matrix (1:12, nrow = 3), order.by = as.Date
(c("2008-08-02","2008-08-03","2008-08-04")))
> colnames (t2) = c ("B", "C", "D", "E")
> both.dates = as.Date (intersect (index (t1), index (t2)))
> both.cols = intersect (colnames (t1), colnames (t2))
Then calling
> t1 [both.dates, both.cols]
gives the expected
B C D
2008-08-02 5 8 11
2008-08-03 6 9 12
And
> t2 [both.dates, both.cols]
gives
B C D
2008-08-02 1 4 7
2008-08-03 2 5 8
But
> t1 [both.dates, both.cols] <- t2 [both.dates, both.cols]
gives
Error in t1[both.dates, both.cols] <- t2[both.dates, both.cols] :
subscript out of bounds
I've tried various varieties of as.matrix, coredata but always get this
error. It's something to do with the first part of the expression as
> t1 [as.Date (both.dates), both.cols] = matrix (1, nrow = 2, ncol = 3)
Error in t1[as.Date(both.dates), both.cols] = matrix(1, nrow = 2, ncol =
3) :
subscript out of bounds
So I'm stuck. I'm running on Windows with R version 2.7.0
Regards,
David
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