how to obtain the variance matrix what is meant by the covariance matrix in sqrt how to obtain covariance in r can i obtain a correlation matrix from a correlation matrix convert matrix of correlation to correlation matrix how are correlation matrix and covariance matrix different what is the covariance matrix how to obtain correlation matrix what is the matrix for r what is covariance s what is the covariance matrix for correlations which matrix is used for the distribution of correlations? how to obtain covariance in r convert correlation matrix to covariance matrix obtaining covariance matrix from correlation matrix how is a covariance matrix obtained how to calculate the correlation matrix convert correlations to covariance values calculate the correlation between a correlation matrix and a correlation matrix generating correlation matrix