PRINT Statement
- PRINT options ;
The PRINT statement is useful for displaying part of a solution
summary, examining intermediate tableaus,
performing sensitivity analysis,
and using parametric programming. In the options, the
colnames and rownames lists can be empty, in which case
the LP procedure displays tables with all columns or rows, or both.
If a column or a row name has spaces
or other special characters in it, the name must be enclosed in
single or double quotes when it appears in the argument.
The options that can be used with this statement are as follows.
- BEST
-
displays a Solution, Variable, and Constraint Summary for
the best integer solution found.
- COLUMN (colnames )/SENSITIVITY
-
displays a Variable Summary containing the logical
and structural variables listed in the colnames list.
If the /SENSITIVITY option is included, then sensitivity analysis
is performed on the price coefficients for the
listed colnames structural variables.
- INTEGER
-
displays a Variable Summary containing only the integer variables.
- INTEGER_NONZEROS
-
displays a Variable Summary containing only the integer variables with
nonzero activity.
- INTEGER_ZEROS
-
displays a Variable Summary containing only the integer variables with
zero activity.
- MATRIX (rownames,colnames)/PICTURE
-
displays the submatrix of the matrix of constraint coefficients
defined by the rownames and colnames lists.
If the /PICTURE option is included, then the formatted submatrix
is displayed.
The format used is summarized in Table 3.2.
Table 3.2: Format Summary
|
Condition on the Coefficient x
|
Symbols Printed
|
| | | | abs(x) | = | 0 | | | " " |
| 0 | | < | abs(x) | < | | .000001 | sgn(x) | "Z" |
| | .000001 |  | abs(x) | < | | .00001 | sgn(x) | "Y" |
| | .00001 | | abs(x) | < | | .0001 | sgn(x) | "X" |
| | .0001 | | abs(x) | < | | .001 | sgn(x) | "W" |
| | .001 | | abs(x) | < | | .01 | sgn(x) | "V" |
| | .01 | | abs(x) | < | | .1 | sgn(x) | "U" |
| | .1 | | abs(x) | < | 1 | | sgn(x) | "T" |
| | | | abs(x) | = | 1 | | sgn(x) | "1" |
| 1 | | < | abs(x) | < | 10 | | sgn(x) | "A" |
| 10 | | | abs(x) | < | 100 | | sgn(x) | "B" |
| 100 | | | abs(x) | < | 1000 | | sgn(x) | "C" |
| 1000 | | | abs(x) | < | 10000 | | sgn(x) | "D" |
| 10000 | | | abs(x) | < | 100000 | | sgn(x) | "E" |
| 100000 | | | abs(x) | < | 1.0E06 | | sgn(x) | "F" |
- NONINTEGER
-
displays a variable summary containing only the continuous variables.
- NONINTEGER_NONZEROS
-
displays a variable summary containing only the continuous variables with
nonzero activity.
- NONZEROS
-
displays a variable summary containing only the variables with
nonzero activity.
- PRICESEN
-
displays the results of parametric programming for the current
value of the PRICEPHI option, the price coefficients, and all of the price
change vectors.
- RANGEPRICE
-
performs range analysis
on the price coefficients.
- RANGERHS
-
performs range analysis on the
right-hand-side vector.
- RHSSEN
-
displays the results of parametric programming
for the current
value of the RHSPHI option, the right-hand-side coefficients, and all of the
right-hand-side change vectors.
- ROW(rownames)/SENSITIVITY
-
displays a constraint summary containing the rows listed in
the rowname list.
If the /SENSITIVITY option is included, then sensitivity analysis
is performed on the right-hand-side coefficients for the
listed rownames.
- SOLUTION
-
displays the solution summary, including the variable summary and the
constraint summary.
- TABLEAU
-
displays the current tableau.
- ZEROS
-
displays a variable summary containing only the variables with
zero activity. This may be useful in the analysis of ON/OFF, ZERO/ONE,
scheduling, and assignment applications.
Copyright © 1999 by SAS Institute Inc., Cary, NC, USA. All rights reserved.
