Re: [R] Collapse an array

From: Gang Chen <gangchen_at_mail.nih.gov>
Date: Thu, 28 Feb 2008 15:33:03 -0500

Thanks a lot for all the suggestions!

Gang

On Feb 28, 2008, at 3:20 PM, Henrique Dallazuanna wrote:

> Try this also:
>
> apply(x, 4, rbind)
>
> On 28/02/2008, Gang Chen <gangchen_at_mail.nih.gov> wrote:
>> Suppose I have a 4-D array X with dimensions (dx, dy, dz, dp). I want
>> to collapse the first 3 dimensions of X to make a 2-D array Y with
>> dimensions (dx*dy*dz, dp). Instead of awkward looping, what is a
>> good
>> way to do this? Is there a similar function like reshape in Matlab?
>>
>> Thanks,
>> Gang



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