https://github.com/cran/FSelector
Tip revision: 04f271f14fba8652b1ba48e065b58dbbc8b36bbd authored by Piotr Romanski on 11 April 2009, 00:00:00 UTC
version 0.15
version 0.15
Tip revision: 04f271f
random.forest.importance.Rd
\name{random.forest.importance}
\alias{random.forest.importance}
\title{ RandomForest filter }
\description{
The algorithm finds weights of attributes using RandomForest algorithm.
}
\usage{
random.forest.importance(formula, data, importance.type = 1)
}
\arguments{
\item{formula}{ a symbolic description of a model }
\item{data}{ data to process }
\item{importance.type}{ either 1 or 2, specifying the type of importance measure (1=mean decrease in accuracy, 2=mean decrease in node impurity) }
}
\details{
This is a wrapper for \code{\link[randomForest]{importance}}
}
\value{
a data.frame containing the worth of attributes in the first column and their names as row names
}
\author{ Piotr Romanski }
\examples{
library(mlbench)
data(HouseVotes84)
weights <- random.forest.importance(Class~., HouseVotes84, importance.type = 1)
print(weights)
subset <- cutoff.k(weights, 5)
f <- as.simple.formula(subset, "Class")
print(f)
}