Extracts the critical value from a model.
Usage
# S4 method for class 'ELMT'
critVal(object, ...)
# S4 method for class 'ELT'
critVal(object, ...)
# S4 method for class 'SummaryELMT'
critVal(object, ...)
# S4 method for class 'SummaryELT'
critVal(object, ...)