CODEWITHSUNDEEP
matlabvectorstruct
Fantastic Mr Fox
Fantastic Mr Fox

Reputation: 33864

Extract field of struct array to new array

I have a struct, which has 2 fields: time and pose. I have multiple instances of this struct composed in an array, so an example of this is:

poses(1)
    -time = 1
    -pose = (doesn't Matter)
poses(2)
    -time = 2
    -pose = (doesn't Matter)
poses(3)
    -time = 3
    -pose = (doesn't Matter)
...

Now when I print this:

 poses.time

I get this:

ans =
      1
ans =
      2
ans =
      3

How can I take that output and put it into a vector?

Upvotes: 11

Views: 10012

Answers (2)

saastn
saastn

Reputation: 6015

For cases that the field values are vectors (of same size) and you need the result in a matrix form:

posmat = cell2mat({poses.pose}');

That returns each pose vector in a different row of posmat.

Upvotes: 2

Gunther Struyf
Gunther Struyf

Reputation: 11168

Use brackets:

timevec=[poses.time];

tricky matlab, I know I know, you'll just have to remember this one if you're working with structs ;)

Upvotes: 18

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