TYPE Statement
 TYPE variable ;
 CONTYPE variable ;
The TYPE list, which is optional, names the variable that has as values
keywords that indicate either the constraint type for each constraint or
the type of special rows in the CONDATA= data set.
The values of the TYPE list variable also indicate, in each
observation of the CONDATA= data set, how
values of the VAR or COEF list variables
are to be interpreted and how the type of
each constraint or special row name is
determined.
If the TYPE list is not specified, the
CONDATA= data set is searched and a SAS variable with the name
_TYPE_ is used.
Valid keywords for the TYPE variable
are given below.
If there is no TYPE statement and no other method is used to furnish
type information
(see the DEFCONTYPE= option), all constraints are assumed to be
of the type
"less than or equal to" and no special rows are used.
The TYPE list variable must have character values and can be used
when the data in the CONDATA= data set
is in either the sparse or dense format.
If the TYPE list variable value has a * as its first character,
the observation
is ignored because it is a comment observation.
TYPE List Variable Values
The following are valid TYPE list variable values.
The letters in boldface denote the characters that
PROC NETFLOW uses to determine what type the value suggests.
You need to have at least
these characters.
Below, the minimal TYPE list variable values
have additional characters to aid you in remembering these values.
The valid TYPE list variable values are
 <
 less than or equal to ()
 =
 equal to (=)
 >
 greater than or equal to ()
 CAPAC
 capacity
 COST
 cost
 EQ
 equal to
 FREE
 free row (used only for Linear Programs solved by Interior Point)
 GE
 greater than or equal to
 LE
 less than or equal to
 LOWERBD
 lower flow or value bound
 LOWblank
 lower flow or value bound
 MAXIMIZE
 maximize (opposite of cost)
 MINIMIZE
 minimize (same as cost)
 OBJECTIVE
 objective function (same as cost)
 RHS
 rhs of constraint
 TYPE
 type of constraint
 UPPCOST
 reserved for future use
 UNREST
 unrestricted variable (used only for Linear Programs solved by Interior Point)
 UPPER
 upper value bound or capacity;
second letter must not be N
The valid TYPE list variable values in function order are
 LE
less than or equal to ()
 EQ
Equal to (=)
 GE
Greater than or equal to ()
 COST
MINIMIZE
MAXIMIZE
OBJECTIVE
cost or objective function coefficient
 CAPAC
UPPER
capacity or upper value bound
 LOWERBD
LOWblank
Lower flow or value bound

RHS
rhs of constraint

TYPE
type of constraint
A TYPE list variable value that has the first character * causes
the observation is be treated as a comment.
If the first character is a negative sign, then ,zero =, a positive number .
Copyright © 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.