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changeMatrixRow-methods.Rd

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    changeMatrixRow-methods.Rd 1.90 KiB
    \name{changeMatrixRow-methods}
    
    \docType{methods}
    \encoding{utf8}
    
    \alias{changeMatrixRow}
    \alias{changeMatrixRow-methods}
    
    \alias{changeMatrixRow,optObj_cplexAPI-method}
    \alias{changeMatrixRow,optObj_glpkAPI-method}
    \alias{changeMatrixRow,optObj_lpSolveAPI-method}
    
    \title{Change a Row in the Constraint Matrix of the Optimization Problem}
    
    \description{
      Change a row in the constraint matrix of the optimization problem.
    }
    
    \usage{
    \S4method{changeMatrixRow}{optObj_cplexAPI}(lp, i, j, val)
    
    \S4method{changeMatrixRow}{optObj_glpkAPI}(lp, i, j, val)
    
    \S4method{changeMatrixRow}{optObj_lpSolveAPI}(lp, i, j, val)
    }
    
    \section{Methods}{
      \describe{
        \item{\code{signature(lp = "optObj_cplexAPI")}}{
          method to use with package \pkg{optObj_cplexAPI}. Only the columns given
          in argument \code{j} will be changed. All other columns stay the same.
        }
        \item{\code{signature(lp = "optObj_glpkAPI")}}{
          method to use with package \pkg{optObj_glpkAPI}. The row given in argument
          \code{i} will be reset completely.
        }
        \item{\code{signature(lp = "optObj_lpSolveAPI")}}{
          method to use with package \pkg{optObj_lpSolveAPI}. The row given in
          argument \code{i} will be reset completely.
        }
      }
    }
    
    \arguments{
      \item{lp}{
        An object extending class \code{\linkS4class{optObj}}.
      }
      \item{i}{
        A single numeric value giving the row index of the constraint matrix to
        change.
      }
      \item{j}{
        A numeric vector containing the column indices of the new non-zero elements.
      }
      \item{val}{
        A numeric vector of the same length as \code{j} containing the new non-zero
        elements.
      }
    }
    
    \author{
      Gabriel Gelius-Dietrich <geliudie@uni-duesseldorf.de>
    
      Maintainer: Claus Jonathan Fritzemeier <clausjonathan.fritzemeier@uni-duesseldorf.de>
    }
    
    
    \seealso{
      Superclass \code{\linkS4class{optObj}} and constructor function
      \code{\link{optObj}}.