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# sparse 2matrix getting an error

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Abhishek singh il 22 Apr 2019
Chiuso: MATLAB Answer Bot il 20 Ago 2021
function A=mysp2matsp(rowIdx,colIdx,entries)
%% transform three-arrays sparse matrix to matlab sparse matrix
nrow = size(rowIdx,2) - 1;
N = size(entries,2);
k = 1;
I = zeros;
J = zeros;
S = zeros;
for i = 1:nrow
j = rowIdx(i);
if i == nrow
for p = j:N
I(k) = i;
J(k) = colIdx(p);
S(k) = entries(p);
k = k + 1;
end
break;
end
for p = 1:(rowIdx(i+1)-rowIdx(i))
I(k) = i;
J(k) = colIdx(j);
S(k) = entries(j);
j = j + 1;
k = k + 1;
end
end
for i = N:-1:1
if S(i)==0
I(i) = [];
J(i) = [];
S(i) = [];
end
end
A=sparse(I,J,S);
end
error
Not enough input arguments.
Error in sparse2matrix (line 5)
N = size(entries,2);
##### 2 CommentiMostra NessunoNascondi Nessuno
Walter Roberson il 22 Apr 2019
When you ran the code, you only passed in either one parameter or else two parameters. You did not pass in three parameters.
We know that you passed in at least one parameter because you would have received the error about insufficient parameters on the line above there where you referred to rowIdx
KSSV il 22 Apr 2019
YOu are trying to run the function without inputs........give required inputs and call the function.

R2016b

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