valExpression is a generic S3 method for classes
inheriting from item. It returns the valuation expression.
# S3 method for health
valExpression(object, market.risk, health.risk, ...)S3 object of class health.
S3 object of class marketRisk created using the constructor
marketRisk.
S3 object of class healthRisk created using the constructor
healthRisk.
additional arguments.
a character value. The expression representing the valuation of the health item.