Calculates the theoretical numerical values of the first 4 moments of the log-normal distribution. Returns true if calculation of the moments has been successful, otherwise false.
[in] Logarithm of the expected value (log_mean).
[in] Logarithm of the root-mean-square deviation (log standard deviation).
[in] Variable for the mean.
[out] Variable for the variance.
[out] Variable for the skewness.
[out] Variable for the kurtosis.
[out] Variable to store the error code.
Returns true if the moments have been calculated successfully, otherwise false.