why does spss tell you my covariance matrix is not positive definite? what is the correct number of variables in a factor analysis why does not positive definite appear what is the matrix in factor analysis can i eliminate a variable if the matrix is not positive? what is matrix not positive in sposs analysis which data type has a variable that is not positive definite? is the covariance matrix positive for social vulnerability? what is the not positive definite problem with spss why is the matrix in factor analysis negative what is a coefficient matrix in spss why is the covariance matrix not positive definite how to calculate a factor analysis in spss why does the matrix of covariant values not be positive what is the matrix for factor analysis how do i solve the not positive definite problem do factor analysis remove variables what is the matrix of covariance when you remove one variable from a matrix, the coefficient of correlation is not positive is the covariance matrix negative