Storing values from for loop in array and calling functions
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I am writing a function to run an m file multiple times and place all outputs into a matrix named AllSimData. I have a few issues. When I run the code below as is, the output is just the pre-allocated zeros matrix. If I try to have line 10 be AllSimData(ii,:)=MakeFakeData(n); the error is "Subscripted assignment dimension mismatch." I'm not sure how to proceed, as I am new to programming.
function [AllSimData] = catSim( SimNumber,n )
%This function will run MakeFakeData(n)the number of times specified as the
%value of SimNumber. Each output of MakeFakeData is a nx5 matrix. This
%function will concatenate each nx5 matrix vertically, creating a huge nx5
%matrix to represent multiple simulations of data generation.
AllSimData=zeros(10000,5);
for ii=1:SimNumber
MakeFakeData(n); %n=number of data points/rows in each FakeData set
AllSimData(ii,:); %Run through all specified iterations of MakeFakeData and add them to array AllSimData.
end
end
采纳的回答
If you've got SimNumber simulations and each is n by 5, then the total output needs be--
AllSimData=zeros(SimNumber*n,5);
Then subscript AllSimData(ii,:) is one row and you're trying to smush five rows into it--that's the size mismatch error. You've got to keep a counter as to where the rows are going to go that is (ii-1)*5+1 or 1,6,11,... and the range each time is 1:5,6:10,11:15, ...
So,
i1=1; i2=n; % initialize counters
for ii=1:SimNumber
AllSimData(i1:i2,:)=MakeFakeData(n);
i1=i1+n; i2=i2+n; % increment counters
end
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