topic Re: Boosted Model maximum number of trees in Alteryx Designer Desktop Discussions

Boosted Model maximum number of trees

Paul_L — Thu, 24 May 2018 02:45:57 GMT

I'm trying to build a GBM in Alteryx and the default number of trees is 4,000. The model was still improving based on the this number of trees so I tried increasing it to 10,000, but I'm still not getting the best model.

The maximum number of trees allowed by the tool configuration is 10,000.

Is there a way to increase the maximum number of trees above 10,000?

Re: Boosted Model maximum number of trees

Aguisande — Thu, 26 Jan 2017 16:52:03 GMT

Hi @Paul_L

You can access within Container 144 inside the Macro, there is a Numeric Up Down Tool, called "The maximum number of trees in the model"

You can change the maximum value allowed for that tool.

That said, I really didn't tried it, and don't know if there is a limitation (for example in R) to have more than 10,000 trees.

Please, let us know how it went.

Best

_AG_

Re: Boosted Model maximum number of trees

Paul_L — Fri, 27 Jan 2017 17:05:09 GMT

Thanks aguisande

I've tried but I'm then having problems saving the macro and if I use save as I'm having trouble getting that to show in my toolbar. Might have to abandon Alteryx for R Studio, which is a real shame as Alteryx is easier for the blending steps beforehand.

Thanks Paul

Re: Boosted Model maximum number of trees

Bob_Blackey — Tue, 31 Jan 2017 02:30:44 GMT

I didn't get a chance to try out aguisande's answer but it looks good to me. I don't know if they set a limit of 10000 for some reason based on experience/explosion or not.

To save the macro:

When you have it open:

1. Click anywhere on the canvas on then select the Meta Info tab on the properties window

2. Choose Custom under Workflow Name and enter "My BM" (for example)

3. Scroll down to Tool Palette and chose "Predictive" (for example)

4. You can alter the search tags (these find tools when you use the search box)

5. Save the file in a special folder C:\MyPredictive (for example)

6. In alteryx go to Options | User settings | Edit User settings

7. On the macros tab add an entry: Predictive and C:\MyPredictive

you should then see the tool in the Predictive toolset.

I could tell you how to change the icon but I'd have to charge you double.

Cheers,

Bob

Re: Boosted Model maximum number of trees

Paul_L — Tue, 31 Jan 2017 09:23:22 GMT

Hi Bob_Blackey

Thanks. It turns out I had saved it but hadn't found it! I wasn't expecting it to appear in the Predictive toolset as I'd saved it with a different name, I was looking in my macros folder with a lot of confusion. It now appears next to the original one with the same name. As you'll charge me double to change the icon, could you tell me how to change the name?

Many thanks,

Paul

Re: Boosted Model maximum number of trees

Aguisande — Tue, 31 Jan 2017 14:52:14 GMT

@Paul_L

If you drag the macro into a workflow, then right-click--> Open Macro, you'll access its options/configurations.

In the Meta-Info Tab you'll have access to change it's name (among other things).

Re: Boosted Model maximum number of trees

Bob_Blackey — Wed, 01 Feb 2017 00:51:22 GMT

To change the icon just open the macro in Alteryx and then go to View | Interface Designer. Click on the Wrench icon (Properties) and you can then choose an icon. Once you see the standard icons which are you available you really appreciate what the designers do with 41x41 pixels.

Re: Boosted Model maximum number of trees

Paul_L — Wed, 01 Feb 2017 13:43:10 GMT

Thanks all for your help, really appreciated