problem.getqobj
problem.getqobj |
Purpose
Returns a single quadratic objective function coefficient corresponding to the variable pair
(icol, jcol) of the Hessian matrix.
Synopsis
objqcoef = problem.getqobj (icol, jcol)
Arguments
|
icol
|
Column index for the first variable in the quadratic term.
|
|
jcol
|
Column index for the second variable in the quadratic term.
|
Example
The following returns the coefficient of the x
0
2 term in the objective function, placing it in the variable
value :
print ("diagonal coeff of the Hessian:",
[p.getqobj (i,i) for i in range (p.attributes.cols)])
Further information
For example, if the objective function has the term [3x
1x
2 + 3x
2x
1]/2 the value retrieved by
getqobj is
3.0 and if the objective function has the term [6x
1
2]/2 the value retrieved by
getqobj is
6.0.
Related topics