[R] creating cubes

[Dalthorp, Daniel]

How about: D<-array(dim=c(d1, d2, d3))?



On Fri, Jan 15, 2016 at 2:20 PM, Matteo Richiardi <
matteo.richiardi at gmail.com> wrote:

> What is the best way to store data in a cube? That is, I need to create a
> data structure D with three indexes, say i,j,h, so that I can access each
> data point D[i,j,h], and visualise sections like D[i,j,] or D[,,h].
>
> I have tried to create an array of matrixes:
>
> D <-matrix(matrix(NA,i,j),h)
>
> but then D[i] returns a number, and not a matrix.
>
> I imagine this is a dummy question, but I did search for an answer on
> various R help sites, and found nothing straightforward. Being an
> inexperienced R user, I prefer a simple solution, even at some efficiency
> cost.
>
> Many thanks for your help.
> Matteo
>
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>
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-- 
Dan Dalthorp, PhD
USGS Forest and Rangeland Ecosystem Science Center
Forest Sciences Lab, Rm 189
3200 SW Jefferson Way
Corvallis, OR 97331
ph: 541-750-0953
ddalthorp at usgs.gov

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