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Thread Subject: Generation of decision trees in Matlab possible ?

Subject: Generation of decision trees in Matlab possible ?

From: Claus

Date: 11 Nov, 2008 09:16:02

Message: 1 of 3

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I am writing some code that will provide probabilities to a decision tree, such as this one:
http://www.time-management-guide.com/decision-tree.html

I don't know how to generate a pleasing tree in matlab, except to recreate something like the link above using a lot of LINE commands. I am looking for a better idea. Can you help?

Thanks in advance,

Claus

Subject: Generation of decision trees in Matlab possible ?

From: Steven Lord

Date: 11 Nov, 2008 14:02:14

Message: 2 of 3

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"Claus " <il_consigliere@excite.com> wrote in message
news:gfbigi$969$1@fred.mathworks.com...
>I am writing some code that will provide probabilities to a decision tree,
>such as this one:
> http://www.time-management-guide.com/decision-tree.html
>
> I don't know how to generate a pleasing tree in matlab, except to recreate
> something like the link above using a lot of LINE commands. I am looking
> for a better idea. Can you help?

Neither of these options are exactly what you want, but Statistics Toolbox
has a classification tree object:

http://www.mathworks.com/access/helpdesk/help/toolbox/stats/bq4embr-1.html

Alternately, you might try using TREEPLOT or TREELAYOUT and rotating the
created tree:

http://www.mathworks.com/access/helpdesk/help/techdoc/ref/treeplot.html

http://www.mathworks.com/access/helpdesk/help/techdoc/ref/treelayout.html

--
Steve Lord
slord@mathworks.com

Subject: Generation of decision trees in Matlab possible ?

From: Amir Hossein

Date: 16 Feb, 2009 23:24:01

Message: 3 of 3

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could you please tell me how i can show node numbers in my plot using treeplot?

"Steven Lord" <slord@mathworks.com> wrote in message <gfc396$is1$1@fred.mathworks.com>...
>
> "Claus " <il_consigliere@excite.com> wrote in message
> news:gfbigi$969$1@fred.mathworks.com...
> >I am writing some code that will provide probabilities to a decision tree,
> >such as this one:
> > http://www.time-management-guide.com/decision-tree.html
> >
> > I don't know how to generate a pleasing tree in matlab, except to recreate
> > something like the link above using a lot of LINE commands. I am looking
> > for a better idea. Can you help?
>
> Neither of these options are exactly what you want, but Statistics Toolbox
> has a classification tree object:
>
> http://www.mathworks.com/access/helpdesk/help/toolbox/stats/bq4embr-1.html
>
> Alternately, you might try using TREEPLOT or TREELAYOUT and rotating the
> created tree:
>
> http://www.mathworks.com/access/helpdesk/help/techdoc/ref/treeplot.html
>
> http://www.mathworks.com/access/helpdesk/help/techdoc/ref/treelayout.html
>
> --
> Steve Lord
> slord@mathworks.com
>

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Tag	Applied By	Date/Time
decision tree	Claus	11 Nov, 2008 04:20:05
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