i need HELPPP!! how do i calculate the RMSE value for two GEV models?first GEV is where the three parameters are constant.2nd GEV model a 4 parameter model with the location parameter is allowed to vary linearly with respect to time while holding the other parameters at constant.
is there any programming code for this?
i really really need help. please reply to me as soon as possible. thanks in advance. 		 	   		  
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