multivariate data generation helper function
multi_raw(x, format, complete_cases, dist, lower, upper)
Data frame or list containing summary statistics for multiple parameters measured in both sexes in two or more populations.
form of the resultant data frame either 'long' or 'wide', Default: 'wide'
Logical; if TRUE rows with missing values will be removed, Default: FALSE
univariate distribution used for data generation either `log` for log normal or `truncated` for truncated distribution, Default: 'truncated'
vector of lower bounds, Default: -Inf
vector of upper bounds, Default: Inf