how does copulas produce correlated data what is multivariate skewness why is r skewed in marginal data can kurtosis be used to generate covariance can copulas generate a nonnormal distribution what is the symmetric copula method what is the definition of polynomial kurtosis what does kurtosis mean why use copulas and kurtosis what is the symmetric skewness of a copula distribution how to use copula in r which type of distribution allows for multivariate skewness and/or kurtosis? how do copulas generate correlated data how to generate a copula with marginals what is kurtosis in covariance which is a useful technique for generating correlated data? symmetric copula definition what is the purpose of copulas do copulas generate nonnormal data? what are kurtosis functions in a copula