Displaying 3 results from an estimated 3 matches for "rfobject".
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refobject
2011 Jan 03
1
randomForest speed improvements
...ghtforward:
library ('randomForest');
data202 <- read.csv ("random.csv", header=TRUE);
x<- data202[1:50000,1:6];
y<- data202[1:50000,8];
y<- y[,drop=TRUE];
x2 <- data202[50001:60000,1:6];
y2 <- data202[50001:60000,8];
y2 <- y2[,drop=TRUE];
RFobject <- randomForest(x,y,na.action=na.roughfix);
p <- predict (RFobject, x2);
In this case, the CSV contains 10 columns, of which 1-6 are numeric in
nature (day of week, week of month, etc...) and column 8 is the target
(sales, a numeric number).
randomForest does fine with the data, our issue...
2007 Aug 24
1
randomForest help
Hello! As a new R user, I'm sure this will be a silly question for the
rest of you. I've been able to successfully run a forest but yet to
figure out proper command lines for the following:
1. saving the forest. The guide just says isavef=1. I'm unsure how
expand on this to create the command.
2. Running new data down the mode. Again, the guide just states irunf
3. Print to
2008 Jun 18
2
randomForest outlier
I try to use ?randomForest to find variables that are the most important to
divide my dataset (continuous, categorical variables) in two given groups.
But when I plot the outliers:
plot(outlier(FemMalSex_NAavoid88.rf33, cls=FemMalSex_NAavoid88$Sex),
type="h",col=c("red","green")[as.numeric(FemMalSex_NAavoid88$Sex)])
it seems to me that all my values appear as