From Andrew.Reynolds at illuminas.com  Wed Apr  1 16:00:56 2015
From: Andrew.Reynolds at illuminas.com (Andrew Reynolds)
Date: Wed, 1 Apr 2015 14:00:56 +0000
Subject: [R-marketing-bugs] RF code
Message-ID: <1b5f3fd21d10472b9d1ab8bdee8f5895@THHSTE15D3BE7.hs20.net>

Hi,

I think the code line

seg.rf.class<-predict(seg.rf, seg.df.test)

or similar, was omitted prior to

clusplot(seg.df.test[,-7],seg.rf.class, color=TRUE, shade=TRUE,
         labels=4, lines=0,
         main="Random Forest classification, holdout data"
         )

on page 329.

Regards

Andrew


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From cnchapman at gmail.com  Wed Apr  1 18:18:19 2015
From: cnchapman at gmail.com (Chris Chapman)
Date: Wed, 1 Apr 2015 09:18:19 -0700
Subject: [R-marketing-bugs] RF code
In-Reply-To: <1b5f3fd21d10472b9d1ab8bdee8f5895@THHSTE15D3BE7.hs20.net>
References: <1b5f3fd21d10472b9d1ab8bdee8f5895@THHSTE15D3BE7.hs20.net>
Message-ID: <CAAHqzZi00TTpBgqr4jdcjisdfK0eo6apPgK-Av2uqgaHv7Jcdg@mail.gmail.com>

You are right, somehow that line was omitted from the book (it's in the .R
file, however). Specifically, it should read:

seg.rf.class <- predict(seg.rf, seg.df.test)     # <=== the line to add

library(cluster)
clusplot(seg.df.test[, -7], seg.rf.class, color=TRUE, shade=TRUE,
         labels=4, lines=0, main="Random Forest classification, holdout
data")

Thanks for the note! I'll add it to the Errata (as confirmed fix #1),

-- Chris


On Wed, Apr 1, 2015 at 7:00 AM, Andrew Reynolds <
Andrew.Reynolds at illuminas.com> wrote:

>  Hi,
>
>
>
> I think the code line
>
>
>
> seg.rf.class<-predict(seg.rf, seg.df.test)
>
>
>
> or similar, was omitted prior to
>
>
>
> clusplot(seg.df.test[,-7],seg.rf.class, color=TRUE, shade=TRUE,
>
>          labels=4, lines=0,
>
>          main="Random Forest classification, holdout data"
>
>          )
>
>
>
> on page 329.
>
>
>
> Regards
>
>
>
> Andrew
>
>
>
> ______________________________________________________________________
> This email has been scanned by the Symantec Email Security.cloud service.
> For more information please visit http://www.symanteccloud.com
> ______________________________________________________________________
>
> _______________________________________________
> R-marketing-bugs mailing list
> R-marketing-bugs at lists.r-forge.r-project.org
>
> http://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/r-marketing-bugs
>
>
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