Assign values to empty matrix
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Hello
I want to create an empty matrix of unknown rows and known columns, then run a loop and assign values to it iteratively. So for example, my code should be something like-
result=zeros(10,3);
for i=1:10
num=1;file=i;
result(i,1)=strcat(num,'_',file);
result(i,2)=tp; % result of some calculation
result(i,3)=delay; % result of another calculation;
end;
Matrices in matlab cannot have both string and numeric types, so how do I proceed doing this?
Thanks in advance!
采纳的回答
Azzi Abdelmalek
2016-7-17
编辑：Azzi Abdelmalek
2016-7-17
You can use cell arrays
A={1 2 'abc' 'efg' [1 2;3 4] [] ''}
Remarque: result=zeros(10,3); is not an empty matrix. With cell arrays you cen write:
result=cell(10,3)
for i=1:10
num=1;
file=i;
result{i,1}=sprintf('%d_%d',num,file);
tp=rand;
delay=rand;
result{i,2}=tp; % result of some calculation
result{i,3}=delay; % result of another calculation;
end;
result
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