[SCIP] Question about Column Generation !

[Abdelkader Ouali]

Hi scip community,
As column generation is based on simplex algorithm,I want to know, why we need "only" to enter a column into the restricted master problem (RMP), and not to select a column as an outgoing column after each solving of the RMP relaxation?Thanks for any answer.
Kind regards---A. Ouali 		 	   		  
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