[R] Create a multi dimensional array from a data frame
LCOG1
jroll at lcog.org
Fri Jan 22 00:06:40 CET 2010
Hello all,
I have data from a csv that i need to coerce into a multi dimensional
array. As you can see from my sample code i have yet to master building
efficient code. I can sort of do what i want but its very cumbersome code
and i know there is a better way to do it, i am just not expereinced enought
yet. So for the following:
#Create Data
h1i1a1<-sample(1:20, 5, replace=TRUE)
h1i1a2<-sample(1:20, 5, replace=TRUE)
h1i1a3<-sample(1:20, 5, replace=TRUE)
h1i2a1<-sample(1:20, 5, replace=TRUE)
h1i2a2<-sample(1:20, 5, replace=TRUE)
h1i2a3<-sample(1:20, 5, replace=TRUE)
h1i3a1<-sample(1:20, 5, replace=TRUE)
h1i3a2<-sample(1:20, 5, replace=TRUE)
h1i3a3<-sample(1:20, 5, replace=TRUE)
h1i4a1<-sample(1:20, 5, replace=TRUE)
h1i4a2<-sample(1:20, 5, replace=TRUE)
h1i4a3<-sample(1:20, 5, replace=TRUE)
h2i1a1<-sample(1:20, 5, replace=TRUE)
h2i1a2<-sample(1:20, 5, replace=TRUE)
h2i1a3<-sample(1:20, 5, replace=TRUE)
h2i2a1<-sample(1:20, 5, replace=TRUE)
h2i2a2<-sample(1:20, 5, replace=TRUE)
h2i2a3<-sample(1:20, 5, replace=TRUE)
h2i3a1<-sample(1:20, 5, replace=TRUE)
h2i3a2<-sample(1:20, 5, replace=TRUE)
h2i3a3<-sample(1:20, 5, replace=TRUE)
h2i4a1<-sample(1:20, 5, replace=TRUE)
h2i4a2<-sample(1:20, 5, replace=TRUE)
h2i4a3<-sample(1:20, 5, replace=TRUE)
h3i1a1<-sample(1:20, 5, replace=TRUE)
h3i1a2<-sample(1:20, 5, replace=TRUE)
h3i1a3<-sample(1:20, 5, replace=TRUE)
h3i2a1<-sample(1:20, 5, replace=TRUE)
h3i2a2<-sample(1:20, 5, replace=TRUE)
h3i2a3<-sample(1:20, 5, replace=TRUE)
h3i3a1<-sample(1:20, 5, replace=TRUE)
h3i3a2<-sample(1:20, 5, replace=TRUE)
h3i3a3<-sample(1:20, 5, replace=TRUE)
#Put into data frame
hia<-data.frame(h1i1a1,h1i1a2,h1i1a3,h1i2a1,h1i2a2,h1i2a3,h1i3a1,h1i3a2,h1i3a3,h1i4a1,h1i4a2,h1i4a3,h2i1a1,h2i1a2,h2i1a3,h2i2a1,h2i2a2,h2i2a3,h2i3a1,h2i3a2,h2i3a3,h2i4a1,h2i4a2,h2i4a3,h3i1a1,h3i1a2,h3i1a3,h3i2a1,h3i2a2,h3i2a3,h3i3a1,h3i3a2,h3i3a3)
i would like to produce a multidimensional array that looks something like
h1 h2 h3
i1 X X X
i2 X X X
i3 X X X
a = 1 , TAZ = 1:5 ->for all 5 TAZ values or each row
h1 h2 h3
i1 X X X
i2 X X X
i3 X X X
a = 2 , TAZ = i in 1:5
h1 h2 h3
i1 X X X
i2 X X X
i3 X X X
a = 3 , TAZ = i in 1:5
Basically a matrix for all possible combination, so 27 matrices altogether.
But i guess its more like an array of arrays? Again i am not being lazy, i
have been working on this all day but my code, like my sample stuff is very
inefficient and ultimately not working well so im not bothering to post it.
I know this will be complicated so thank you in advance, seeing the end code
will teach me a great deal. Thanks
Cheers,
JR
--
View this message in context: http://n4.nabble.com/Create-a-multi-dimensional-array-from-a-data-frame-tp1068487p1068487.html
Sent from the R help mailing list archive at Nabble.com.
More information about the R-help
mailing list