delete rows in 3d-matrix

Hi all,

How can I delete a row in a 3d matrix? I want to delete the upper row in the matrices: stuff(:,:,1:3)

 stuff(:,:,1(:,1))=[]

doesn't work..

"Unbalanced or unexpected parenthesis or bracket."

Does anyone know the answer? Thanks.

Cheers,

T

[Jan]

What exactly is "the upper row"?

[Image Analyst]

Not sure what you mean. In 3D people talk about a "slice" or a "plane" not a row. You can't eliminate just row 1 of slices 1, 2, and 3 because then the array is no longer rectangular - it would have a notch or chunk out of it. But you can get rid of a whole slice at a time.

Answer 1

[Tim]

Thought about this last night in bed and couldn't understand the stupid mindtwist I made, it's just simply:

 stuff(1,:,:)=[]

And indeed it's the upper slice. My bad. Thanks anyway!

[Image Analyst]

Normally slices are the last dimension, like Jan had. So I guess you're taking the left-most slice that lies in the (row, slice), or Y-Z plane, basically the left face of the data volume, at least according to how most people think of it.

Answer 2

[Jan]

stuff(:, :, 1) = []