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[1] "2013-12-17 10:45:18 PST"
ES optimization benchmark with random portfolios and DEoptim 
Unit: seconds
     expr       min        lq     median         uq        max neval
 opt_rp()  8.539322  8.581483   8.685236   9.019323   9.510726    10
 opt_de() 42.417468 98.721399 113.836677 128.932124 142.691423    10
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