How to concatenate arrays from cell arrays in Matlab

Question

I am new to Matlab and was trying to concatenate array from cell arrays. I have done it as shown below.

S = load('input_file.mat');
c = struct2cell(S);
v = cell2mat(c(1,1));
temp = v(1:500,1:600);

v = cell2mat(c(3,1));
temp1 = v(1:500,1:600);

v = cell2mat(c(2,1));
temp2 = v(1:500,1:600);

v = cell2mat(c(4,1));
temp3 = v(1:500,1:600);

array1 = vertcat(temp,temp1);
array2 = vertcat(temp2,temp3);

But i guess there should be a better way or a direct function call which can get me the same result as i am getting from the code shown?

Can you give a small example with all variables contained?

Luis Mendo
– Luis Mendo

2014-03-05 18:23:45 +00:00
Commented Mar 5, 2014 at 18:23 — Luis Mendo
– Luis Mendo, Commented Mar 5, 2014 at 18:23
All variables are integers

SPB
– SPB

2014-03-05 18:34:32 +00:00
Commented Mar 5, 2014 at 18:34 — SPB
– SPB, Commented Mar 5, 2014 at 18:34
You helped me find horzcat and vertcat

Josiah Yoder
– Josiah Yoder

2018-05-31 18:12:15 +00:00
Commented May 31, 2018 at 18:12 — Josiah Yoder
– Josiah Yoder, Commented May 31, 2018 at 18:12

chappjc · Accepted Answer · 2014-03-05 18:28:52Z

1

This is a very specific task, not very general, unless I'm missing the pattern. Starting after struct2cell:

C3 = cellfun(@(x)x(1:500,1:600),c,'uni',0);
array1 = vertcat(C3{[1 3]});
array2 = vertcat(C3{[2 4]});

Although, you could probably get rid of your initial structfun if you replace cellfun above with structfun, taking s as an input. It simply operates on each field.

answered Mar 5, 2014 at 18:28

chappjc

30.6k7 gold badges79 silver badges138 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How to concatenate arrays from cell arrays in Matlab

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related