XYT <- array(1:150, dim=c(3,5,10))
XYbyT= matrix(apply(XYT, 3, I), ncol=10)
...or even...
XYbyT= matrix(XYT, ncol=10)
--
David.
On Sep 19, 2009, at 1:11 PM, Xi Ang wrote:
Hi
I have some data with these dimensions:
5 3 100
which correspond to the x, y, and time dimensions, for a variable, p.
I need the data in this format: 100 rows (1 row per time unit), and 15
values in each row.
I have attempted to reshape my data
dim(data)
5 3 100
attr(data,'dim')<-c(dim(data)[3],dim(data)[1]*dimdata[2])
So I get data with 100 rows, 15 columns.
I need to use this data outside of R, and so have to save it as an
ASCII
file that retains the row-column structure of the data, but I do not
know
how to.
It would be ideal if I could end up with a text file that also has an
additional column that labels which time unit (1-100) the row
belongs to,
i.e.
1 a1,1 a1,2 ........... a1,15
2 a2,1 a2,2 ........... a2,15
3 a3,1 a3,2 ........... a3,15
4 a4,1 a4,2 ........... a4,15
.
.
.
99
100
Any suggestions would be appreciated.
Thanks
Xi
--
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT
______________________________________________
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