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#!N 
#!CSeaGreen #!N  #!Rall537 Function Call Arguments 
#!N #!EC #!N #!N Data Explorer provides a flexible function-calling mechanism 
for invoking macros and modules. #!N #!N A macro's definition includes 
a list of identifiers that are used as its input formal 
parameters. The formal parameters act as names and place holders for 
the arguments that you supply when the macro is called. #!N 
#!N Modules (functions that are compiled into the system) have named 
formal parameters. The general form of a function (macro or module) 
call, whether used as the right hand side of an assignment 
statement or on its own, is: #!N #!N #!CForestGreen #!N  #!F-adobe-courier-bold-r-normal--18*   
#!N  #!F-adobe-times-bold-i-normal--18*   Name #!EF (  #!F-adobe-times-bold-i-normal--18*   arglist #!EF )[attribute_name:value,...] #!EF #!N 
#!N #!EC #!N #!N where  #!F-adobe-times-bold-i-normal--18*   Name #!EF is the name 
of the function being called and  #!F-adobe-times-bold-i-normal--18*   arglist #!EF is a 
list of arguments that are separated by commas (the list can 
be empty). Following the function may optionally be a list of 
attribute_name:value pairs enclosed in square brackets. Each argument's value can be 
either a variable identifier, a constant value, an expression, or the 
special identifier  #!F-adobe-times-bold-r-normal--18*   NULL #!EF . Note that nested function calls 
 #!F-adobe-times-medium-i-normal--18*   cannot #!EF be passed as arguments. The argument values can 
be passed either by position or by name, as described in 
the following sections. #!N #!N #!N  #!F-adobe-times-medium-i-normal--18*   Next Topic #!EF #!N 
#!N  #!Lall538,dxall539 h Positional Arguments  #!EL  #!N  #!F-adobe-times-medium-i-normal--18*   #!N 