Class initializer for SortColumns

Class represents an NLME sort columns object

Arguments

...

Names of input data columns (up to 5 for individual models and no limit for population models) used to sort the input data and model outputs. Can be supplied as either a single string or a vector of strings.

Examples

# The following two setups are equivalent
sortColumnSetUp <- SortColumns("Country,City")
sortColumnSetUp <- SortColumns(c("Country","City"))

# The following two setups are equivalent
sortColumnSetUp <- SortColumns("Sort1 Sort2", "Sort3")
sortColumnSetUp <- SortColumns(c("Sort1, Sort2 "), "Sort3 ")