MATLAB: Error using svd Input to SVD must not contain NaN or Inf.

svd

Hello everyone, I meet a problem with my code. when I run this code below, I get this error :
Error using svd Input to SVD must not contain NaN or Inf.
Error in fxy_I2_5Ddamp_nx_ny>P_RD (line ….)
[U,S,V] = svd(din);
How do I solve this problem ? Thanks.
function [dout]=P_RD(din,N,K)
[U,S,V] = svd(din);
s = SoftTh(diag(S), 2);
j=1:N
S=diag(s);
    for j=1:N
         S(j,j)=S(j,j)*(1-S(N+1,N+1)^K/S(j,j)^K);
    end    
        dout=U(:,1:N)*S(1:N,1:N)*(V(:,1:N)');
return

Best Answer

Run any(any(isnan(din))) and any(any(isinf(din))). If the output is 1 it means your matrix din has an infinity value or a not a number value. This is causing the svd function to error out.
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