search for: reshigh

Displaying 2 results from an estimated 2 matches for "reshigh".

2013 Sep 27
0
Best and Worst values
...1],use.names=FALSE),Actual=unlist(Actual1[,-1],use.names=FALSE),stringsAsFactors=FALSE) dat2New<- dat2[!(is.na(dat2$Predict)|is.na(dat2$Actual)),] ?dat3<- dat2New[order(dat2New$S1,dat2New$Predict),] library(plyr) resLow<-ddply(dat3,.(S1),summarize, cbind(head(Predict,5),head(Actual,5))) resHigh<-ddply(dat3,.(S1),summarize, cbind(head(rev(Predict),5),head(rev(Actual),5))) ?resLow1<-data.frame(Date=resLow[,1],Predict=resLow[,2][,1],Actual=resLow[,2][,2]) ?resHigh1<-data.frame(Date=resHigh[,1],Predict=resHigh[,2][,1],Actual=resHigh[,2][,2]) ?resHigh1$id<- 1:nrow(resHigh1) ?resLow...
2004 Aug 09
4
linear constraint optim with bounds/reparametrization
Hello All, I would like to optimize a (log-)likelihood function subject to a number of linear constraints between parameters. These constraints are equality constraints of the form A%*%theta=c, ie (1,1) %*% 0.8,0.2)^t = 1 meaning that these parameters should sum to one. Moreover, there are bounds on the individual parameters, in most cases that I am considering parameters are bound between zero