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# problem.slpChgRowStatus

Purpose
Change the status setting of a constraint
Topic areas
SLP, Data Input, Bit-vector, Nonlinear
Synopsis
`problem.slpChgRowStatus(row, status)`
Arguments

row | The index of the matrix row to be changed.
status | An integer holding a bitmap with the new status settings. If the status is to be changed, always get the current status first (use problem.slpGetRowStatus) and then change settings as required. The only settings likely to be changed are:
Bit 11 | Set if row must not have a penalty error vector. This is the equivalent of an enforced constraint (SLPDATA type EC).

Further information
1. If status is None the current status will remain unchanged.
2. Argument row may contain xpress.constraint objects instead of indices.
Related topics
problem.slpGetRowStatus
Parent Topic Methods of the class problem

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