Arguments

The data and options passed to a function are called arguments. Generally, arguments are numeric values, strings, or logical expressions. There are only two functions for which this is not the case: CHANGED and FOUND. These functions’ arguments must be a variable because these functions supply information about the status of a variable.

The syntax for each Enrichment function is:

FUNCTION(arg1,[arg2,arg3,arg4,arg5,arg6,arg7])

In this example, FUNCTION has seven arguments. Arguments within brackets are optional. Enrichment uses the default value for optional arguments left unspecified.

Some arguments have default values that Enrichment uses if you do not explicitly specify the argument. For example, if a function call is made as follows:

%%answer = FUNCTION(arg1,,arg3)

Enrichment sets the value for arg2 to its default. Note that no value was entered for arg2. Likewise, arg2 and arg3 could be set to their default values as follows:

%%answer = FUNCTION(arg1)

No separators (that is, commas) are required since only the first argument is specified. If a function is called using all default argument values or if there are no arguments, the parentheses are still required. For example:

%%answer = FUNCTION()