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# chgmcoef

Purpose
Used to change multiple coefficients in the matrix.
If any coefficient does not already exist, it will be added to the matrix. If many coefficients are being added to a row of the matrix, it may be more efficient to delete the old row of the matrix and add a new one.
Synopsis
`chgmcoef(
prob,
rowind,
colind,
rowcoef,
ncoefs = x_max_vec_length(rowind, colind, rowcoef)
)`
Arguments

prob | The current problem.
rowind | Integer array of length ncoefs containing the row indices of the coefficients to be changed.
colind | Integer array of length ncoefs containing the column indices of the coefficients to be changed.
rowcoef | Double array of length ncoefs containing the new coefficient values.
ncoefs | Number of new coefficients.

Return value
The input argument prob.
Further information
Please refer to the C documentation for more details.
Parent Topic R interface reference manual

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