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2008 Oct 28
0
Random Forest Bug
...help list,
I think I found a bug a the R Random Forest. Hopefully, you are able to
reproduce it.
I use R version 2.7.2 and RF version 4.5-27.
This is a minimal code to describe the problem:
library(randomForest)
tries <- 20
dimension <- 20
n <- 200
outlyingness <- rep(NaN,tries)
for (o_number in 1:tries){
features <- matrix(rnorm(n*dimension,0,1),n,dimension)
#Generate features, n uncorrelated normally distributed points
outlier.rf <- randomForest(features, ntree=100, proximity=TRUE)
#Compute Random Forest including the proximity matrix
outlyingness_all <- apply(outlier.rf$p...
2008 Apr 28
0
(no subject)
Hi R users
Here is an example of my data (only a small part)
Year Season A_Time R_Time O_Time All_Time AandR_Time
A_number R_number O_number AandR_number all_number
1999 Winter 9.590741 35.312963 42.759524 23.228431 18.164815
18 9 7 27
34
2000 Winter 9.899537 47.945000 59.744444 20.301333 18.170290
36 10 3 46
49
2001 Winter 12.861364 26.239583 52.350000 23.376...
2008 Apr 28
0
Two graphs on one using barchart
> Hi R users
> Here is an example of my data (only a small part)
>
> Year Season A_Time R_Time O_Time All_Time AandR_Time
> A_number R_number O_number AandR_number all_number
> 1999 Winter 9.590741 35.312963 42.759524 23.228431 18.164815
> 18 9 7 27
> 34
> 2000 Winter 9.899537 47.945000 59.744444 20.301333 18.170290
> 36 10 3 46
> 49
> 2001 Winter 12.8...