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## S3 method for class 'optObj_clpAPI': getObjDir(lp)## S3 method for class 'optObj_cplexAPI': getObjDir(lp)## S3 method for class 'optObj_glpkAPI': getObjDir(lp)## S3 method for class 'optObj_lpSolveAPI': getObjDir(lp)
## S3 method for class 'optObj_cplexAPI': getObjDir(lp)
## S3 method for class 'optObj_glpkAPI': getObjDir(lp)
## S3 method for class 'optObj_lpSolveAPI': getObjDir(lp)
optObj
"max"
"min"