## S3 method for class 'optObj_clpAPI,numeric':
addCols(lp, ncols)## S3 method for class 'optObj_cplexAPI,numeric':
addCols(lp, ncols)
## S3 method for class 'optObj_glpkAPI,numeric':
addCols(lp, ncols)
## S3 method for class 'optObj_lpSolveAPI,numeric':
addCols(lp, ncols)
optObj
.optObj
and constructor function
optObj
.