Functions and CALL Routines 
Applies the logistic function to each argument.
CALL LOGISTIC(argument<, argument,
...>)


argument

is a numeric variable.
Restriction 
The CALL LOGISTIC
routine only accepts variables as valid arguments. Do not use a constant or
a SAS expression because the CALL routine is unable to update these arguments. 
The CALL LOGISTIC routine replaces each
argument by the logistic value of that argument. For example
is replaced by
If any argument contains a missing value, then CALL LOGISTIC
returns missing values for all the arguments.
The following SAS statements produce these
results.
SAS Statements 
Results 
x=0.5;
y=0.5;
call logistic(x,y);
put x= y=;

x=0.6224593312 y=0.3775406688

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