Structure to matrix

Hello,

I am trying to convert a structure with 40 fields into a single 3D matrix. I tried using struct2cell but got an error ??? Undefined function or method 'struct2cell' for input arguments of type 'double'.

I then tried creating a loop (below) but it writes the first field 40 times instead of writing all 40 fields once.. and I'm not sure how to fix it. The structure (runoff) has 40 fields, each with dimensions 12x360x720. I want to create a matrix (runoff_all) that has all the data in the structure and dimensions 480x360x720. How can I achieve this?

varnames=fieldnames(runoff);
runoff_all=zeros(480,360,720);

for k=1:length(varnames)
    for i=1:12:469 
    runoff_all(i:i+11,:,:)=runoff.(varnames{k})(1:12,:,:);
    end
end

[Walter Roberson]

Please show the call you tried for struct2cell()

Answer 1

[Andrei Bobrov]

'struct2cell' - built-in function of MATLAB

>> which struct2cell

about loop for .. end

varnames=fieldnames(runoff);
runoff_all=zeros(480,360,720);
for k=1:length(varnames)
    frunoff_all(12*k + (-11:0),:,:)=runoff.(varnames{k});
end