When positive RMSE is used for SCE-UA, spotpy is trying to maximise it

[flydream0428]

############### When the rmse is used with sce-ua, the screen feedback is trying to favor the high rmse. I checked the output database file. The output looks fine for me, it's coverging to minimize rmse. However, the screen feedback is doing somehting different. ################# Defiend objective function: def objectivefunction(self,simulation,evaluation): like = spotpy.objectivefunctions.rmse(evaluation,simulation) # return like ################# Sampler: sampler = spotpy.algorithms.sceua(spotpy_setup, dbname='SCEUA_TR_nwt_log_v2', dbformat='csv', alt_objfun=None, parallel='mpi') ####################### Screen feedback

• Database file 'SCEUA_TR_nwt_log_v2.csv' created. 2 of 5000 (best like=4.20488) est. time remaining: 19:28:16 3 of 5000 (best like=7.82415) est. time remaining: 10:09:17 4 of 5000 (best like=9.11453) est. time remaining: 03:55:33 6 of 5000 (best like=9.11453) est. time remaining: 21:19:06 16 of 5000 (best like=9.11453) est. time remaining: 00:22:21 17 of 5000 (best like=10.3767) est. time remaining: 23:14:48 18 of 5000 (best like=10.3767) est. time remaining: 22:33:41 19 of 5000 (best like=10.3767) est. time remaining: 01:41:30 20 of 5000 (best like=10.3767) est. time remaining: 02:20:16 22 of 5000 (best like=10.3767) est. time remaining: 00:27:41 24 of 5000 (best like=10.3767) est. time remaining: 22:52:04 25 of 5000 (best like=10.3767) est. time remaining: 00:33:59 26 of 5000 (best like=11.1997) est. time remaining: 01:01:29 28 of 5000 (best like=11.1997) est. time remaining: 00:06:06 41 of 5000 (best like=11.1997) est. time remaining: 23:03:14 42 of 5000 (best like=11.1997) est. time remaining: 23:23:23 44 of 5000 (best like=18.8545) est. time remaining: 22:49:17 45 of 5000 (best like=18.8545) est. time remaining: 23:06:21 46 of 5000 (best like=18.8545) est. time remaining: 22:54:07

[thouska]

Hi @flydream0428 Thanks for reporting this issue. As you already mentioned, this was only a printing related issue, which should be fixed with version >=1.5.0. Feel free to re-open this issue in case of any problems.

Please note: the "alt_objfun=None" keyword is not necessary any more. Spotpy is using the user defined def objectivefunction now in any case.