hi,I have a 5-dimensional matrix and I want to pull out 3 dimensions. How do I do that?

I have a 5-dimensional matrix and I want to pull out 3 dimensions. How do I do that?

Answer 1

[Adam Danz]

help squeeze

Example:

d = rand(3,4,5,6,7);        
s = squeeze(d(:,:,:,1,1));  
>> ndims(s)
ans =
   3
>> size(s)
ans =
   3     4     5

[Stephen23]

For that example squeeze is not required:

>> d = rand(3,4,5,6,7);
>> s = d(:,:,:,1,1);
>> size(s)
ans =
   3   4   5

[Adam Danz]

Oh yeah... thanks, Stephen. So you might not need squeeze, Ron, depending on what you're doing.

Here's an example where squeeze is useful:

d = rand(3,1,1,6,7);  
size(d)
ans =
     3     1     1     6     7
s = squeeze(d); 
size(s)
ans =
     3     6     7