Combining cells into a single cell

Hi there

I have a variable called z in a 9x1 cell. See the picture:

Is ther anyway to combine the cells to one cell like 360<181x1080?

Because when I run my data, z{:} in my code, I got the error "Expected one output from a curly brace or dot indexing expression, but there were 9 results."

So I think I should combine my 9 cells to one so I have one result?

[Luna]

What do you mean by < operator in this term: 360<181x1080?

And could you please share your code how do you use z{:} ?

Dou you want to merge all of these double arrays inside your z?

[Stephen23]

"Is ther anyway to combine the cells to one cell like 360<181x1080?"

Your 9x1 cell array contains double arrays (not cell arrays), so the combined array will also be a double array (not a cell array as you wrote).

https://www.mathworks.com/help/matlab/matlab_prog/fundamental-matlab-classes.html

[Jonas Damsbo]

It's here I use the z{:}

for i = 1:Nfiles
  lon{i} = ncread(ncfiles(i).name, 'longitude'); 
  lat{i} = ncread(ncfiles(i).name, 'latitude'); 
  time{i} = ncread(ncfiles(i).name, 'time'); 
  z{i} = ncread(ncfiles(i).name, 'z');
end

nx = length(lon{i});
ny = length(lat{i});
nt = length(vertcat(time{:}));

zmean = zeros([nx ny]);
blocks = zeros(nx);

    for n = 1:nt
    zx(:,1:ny) = z{:}(:,ny:-1:1);
    zmean = zmean + zx;
    end

[Stephen23]

If z is non-scalar (i.e. has zero or multiple cells) then this syntax will throw an error:

z{:}(:,ny:-1:1);

Do you have a question about the code that you showed us? I notice that the code you show does not use either of the answers that you have been given.

[Jonas Damsbo]

It's here I want a single cell for z. But I think Star Strider have make an answer I can use.

Answer 1

[Star Strider]

See if the cat (link) or cell2mat (link) or both will help solve your problem.

Example —

M{1} = rand(3,4,2);
M{2} = rand(3,4,2);
M{3} = rand(3,4,2);

Mcat = cat(3, M(1),M(2),M(3));
Mdbl = cell2mat(Mcat);

producing:

SizeMdbl = size(Mdbl)
SizeMdbl =
     3     4     6

This seems to be the sort of result you want.

[madhan ravi]

+1 smooth !

Answer 2

[Stephen23]

Simpler:

out = cat(3,z{:})

https://www.mathworks.com/help/matlab/matlab_prog/comma-separated-lists.html

https://www.mathworks.com/matlabcentral/answers/320713-how-to-operate-on-comma-separated-lists