Hi:

Before you do all of that, might one inquire about which goal you are trying
to
achieve? Perhaps a 27-dimensional array may not be the wisest choice of data
structure for your goal.

Dennis

On Thu, Jan 21, 2010 at 3:06 PM, LCOG1 <jroll@lcog.org> wrote:

>
> 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.
>
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> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
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>

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