[R-sig-Geo] Random Forest Classifier

Ned Horning horning at amnh.org
Wed Oct 26 14:50:32 CEST 2011


Hi Mohammed,

I recently posted some random forests R scripts and guides on our web
site:http://biodiversityinformatics.amnh.org/. On the site go to Open
Source Resources =>  CBC Developed Resources. If you download and use
these tools I would appreciate your feedback. I still need to upload
this link to the OSGeo Educational Content Inventory.

I have had very good luck using random forests for classification. I
prefer random forests classification much more than single decision
trees if I'm using many predictor variables. Regression is a little more
problematic but applying the correction to reduce the bias at the
extreme values seems to help.

There are also classification and regression scripts to apply random
forests to segmented images but those will be posted on another site in
a few weeks along with some exercises.

All the best,

Ned



On 10/26/2011 03:35 AM, Mohammed Rashad wrote:
> Hi All,
> I wrant to do Random Forest classification. I installed R, randomForest
> classifier package for R
> but dont know how to use it.
>
> Is there any Open Source Remote sensing application which do RF
> classification on satellite images?
>
> Anyone r has random forest classification example?
>
> Any language or package  example no problem.
>
> Does anyone did it in R?
> if yes how?
>
> I google RF Classification but most of them are for medical disease and
> research not for Remote Sensing



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