Save Random Survival Forest as a .rfz Compressed File

Description

rsf2rfz saves a randomSurvivalForest forest object as an .rfz compressed file that is readable by the RSF Java plugin that is capable of visualizing the trees in the forest.

Usage

    rsf2rfz(object, forestName = NULL, ...)

Arguments

Details

An .rfz compressed file is actually a .zip file consisting of three files. The first is an ASCII file of type .txt containing the $nativeArray component of the forest. The second is an ASCII file of type .factor.txt containing the $nativefactorArray component of the forest. The third is an ASCII file of type .xml containing the PMML DataDictionary component.

PMML or the Predictive Model Markup Language is an XML based language which provides a way for applications to define statistical and data mining models and to share models between PMML compliant applications. More information about PMML and the Data Mining Group can be found at http://www.dmg.org.

This function, rsf2rfz, is used to import the geometry of the forest to a Java plugin that is capable of visualizing the trees in the forest.

The geometry of the forest is saved as a file called forestName.rfz in the users working directory. This file can then be read by the randomSurvivalForest Java plugin.

Contact the authors on downloading the Java plugin.

Value

None.

Note

Contact the authors on downloading the Java plugin.

Author(s)

Hemant Ishwaran Udaya B. Kogalur

References

http://www.dmg.org

See Also

rsf.

Examples

## Not run: 
# Example 1:  Growing a forest, saving it as a \emph{.rfz} file ready
# for import into the Java plugin.


library("XML")

data(veteran, package = "randomSurvivalForest")
veteran.out <- rsf(Surv(time, status)~., data = veteran, ntree = 5)
veteran.forest <- veteran.out$forest
rsf2rfz(veteran.forest, forestName="veteran")

## End(Not run)