accuracies are not unexpected.
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Von: Witold E Wolski
Gesendet: Samstag, 12. Januar 2019 18:56
An: r-help@r-project.org
Betreff: [R] randomForest out of bag prediction
Hello,
I am just not sure what the predict.RandomForest function is doing...
I confused.
I would expect
See inline.
On Sat, Jan 12, 2019 at 9:56 AM Witold E Wolski wrote:
> ypred_oob <- predict(diachp.rf)
AFAIK these are, indeed, the out-of-bag predictions.
> dataX <- data %>% select(-quality) # remove response.
> ypred <- predict( diachp.rf, dataX )
These are not out of bag predictions. dataX
Off topic.
But see here:
https://stats.stackexchange.com/questions/61405/random-forest-and-prediction
-- Bert
Bert Gunter
"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
On Sa
Hello,
I am just not sure what the predict.RandomForest function is doing...
I confused.
I would expect the predictions for these 2 function calls to predict the same:
```{r}
diachp.rf <- randomForest(quality~.,data=data,ntree=50, importance=TRUE)
ypred_oob <- predict(diachp.rf)
dataX <- data %>
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