Displaying 4 results from an estimated 4 matches for "aucval".
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acutal
2017 Jun 26
3
Jagged ROC curves?
...etROC <- function(d1train,d1test){
my_model <- AUCRF(formula= status ~ ., data=d1train,
ranking='MDA',ntree=1000,pdel=0.05)
my_opt_model <- my_model$RFopt
my_probs <- predict(my_opt_model, d1test, type = 'prob')
my_roc <- roc(d1test[,resp_col] ~ my_probs[,2])
aucval <- round(as.numeric(my_roc$auc),4)
return(my_roc)
}
roc_1 <- getROC(dat1,dat1test)
plot.roc(roc_1,col="brown3")
> roc_1
Call:
roc.formula(formula = d1test[, resp_col] ~ ibd_probs[, 2])
Data: ibd_probs[, 2] in 3 controls (d1test[, resp_col] 0) < 19 cases
(d1test[, resp_co...
2010 Feb 25
3
variable substitution in for loops
Friends
I can't quite find a direct answer to this question from the lists, so here goes:
I have several dataframes, 200+ columns 2000+ rows. I wish to script some operations to perform on some of the variables (columns) in the data frames not knowing what the column number is, hence have to refer by name. I have variable names in a text file "varlist". So, something like this:
2017 Jun 26
0
Jagged ROC curves?
...test){
> my_model <- AUCRF(formula= status ~ ., data=d1train,
> ranking='MDA',ntree=1000,pdel=0.05)
> my_opt_model <- my_model$RFopt
>
> my_probs <- predict(my_opt_model, d1test, type = 'prob')
> my_roc <- roc(d1test[,resp_col] ~ my_probs[,2])
> aucval <- round(as.numeric(my_roc$auc),4)
> return(my_roc)
> }
>
>
> roc_1 <- getROC(dat1,dat1test)
> plot.roc(roc_1,col="brown3")
>
>
>> roc_1
>
> Call:
> roc.formula(formula = d1test[, resp_col] ~ ibd_probs[, 2])
>
> Data: ibd_probs[, 2]...
2017 Jun 26
0
Jagged ROC curves?
...CRF(formula= status ~ ., data=d1train,
> > ranking='MDA',ntree=1000,pdel=0.05)
> > my_opt_model <- my_model$RFopt
> >
> > my_probs <- predict(my_opt_model, d1test, type = 'prob')
> > my_roc <- roc(d1test[,resp_col] ~ my_probs[,2])
> > aucval <- round(as.numeric(my_roc$auc),4)
> > return(my_roc)
> > }
> >
> >
> > roc_1 <- getROC(dat1,dat1test)
> > plot.roc(roc_1,col="brown3")
> >
> >
> >> roc_1
> >
> > Call:
> > roc.formula(formula = d1test[, resp...