Hi,
Please can you tell me what I am doing wrong. When trying to merge two xts
objects, one of which has multiple character vectors for columns...I am just
getting NAs.
> str(t)
POSIXct[1:1], format: "2011-01-04 11:45:37"
> y2 = xts(matrix(c(letters[1:10]),5), order.by=as.POSIXct(c(t + 1:5)))
> names(y2) = c(1,2)
> y2
1 2
2011-01-04 11:45:38 "a" "f"
2011-01-04 11:45:39 "b" "g"
2011-01-04 11:45:40 "c" "h"
2011-01-04 11:45:41 "d" "i"
2011-01-04 11:45:42 "e" "j"
> y1 = xts(c(1:5), order.by=as.POSIXct(c(t + 1:5)))
> y1
[,1]
2011-01-04 11:45:38 1
2011-01-04 11:45:39 2
2011-01-04 11:45:40 3
2011-01-04 11:45:41 4
2011-01-04 11:45:42 5
> merge(y1, y2)
y1 X1 X2
2011-01-04 11:45:38 1 NA NA
2011-01-04 11:45:39 2 NA NA
2011-01-04 11:45:40 3 NA NA
2011-01-04 11:45:41 4 NA NA
2011-01-04 11:45:42 5 NA NA
Warning message:
In merge.xts(y1, y2) : NAs introduced by coercion
Why do I lose the character columns ?
Cheers,
Chris
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