I am generating correlation matrix by some new algorithm. Generated matrix is non positive semidefinite matrix.

I'm getting a few negative eigenvalues. The rest of eigenvalues are quite equal to the ideal matrix.

Can I use that non positive semidefinite matrix? If not, why?

I am generating correlation matrix by some new algorithm. Generated matrix is non positive semi-definite matrix.

I'm getting a few negative eigenvalues. The rest of eigenvalues are quite equal to the ideal matrix.

Can I use that non positive semi-definite matrix? If not, why?

If my estimated correlation matrix has all positive but complex value and imaginary terms are close to zero then is it possible?

I am generating correlation matrix by some new algorithm. Generated matrix is non positive semi definite matrix.

I'm getting few negative eigenvalues. Rest of eigenvalues are quite equal to ideal Matrix.

Can I use that non positive semi definite matrix? If not why?

I am generating correlation matrix by some new algorithm. Generated matrix is non positive semidefinite matrix.

I'm getting a few negative eigenvalues. The rest of eigenvalues are quite equal to the ideal matrix.

Can I use that non positive semidefinite matrix? If not, why?