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From Ndjido Ardo BAR <ndj...@gmail.com>
Subject Re: Grid search with Random Forest
Date Tue, 01 Dec 2015 07:43:46 GMT
Hi Benjamin,

Thanks, the documentation you sent is clear.
Is there any other way to perform a Grid Search with GBT?


Ndjido
On Tue, 1 Dec 2015 at 08:32, Benjamin Fradet <benjamin.fradet@gmail.com>
wrote:

> Hi Ndjido,
>
> This is because GBTClassifier doesn't yet have a rawPredictionCol like
> the. RandomForestClassifier has.
> Cf:
> http://spark.apache.org/docs/latest/ml-ensembles.html#output-columns-predictions-1
> On 1 Dec 2015 3:57 a.m., "Ndjido Ardo BAR" <ndjido@gmail.com> wrote:
>
>> Hi Joseph,
>>
>> Yes Random Forest support Grid Search on Spark 1.5.+ . But I'm getting a
>> "rawPredictionCol field does not exist exception" on Spark 1.5.2 for
>> Gradient Boosting Trees classifier.
>>
>>
>> Ardo
>> On Tue, 1 Dec 2015 at 01:34, Joseph Bradley <joseph@databricks.com>
>> wrote:
>>
>>> It should work with 1.5+.
>>>
>>> On Thu, Nov 26, 2015 at 12:53 PM, Ndjido Ardo Bar <ndjido@gmail.com>
>>> wrote:
>>>
>>>>
>>>> Hi folks,
>>>>
>>>> Does anyone know whether the Grid Search capability is enabled since
>>>> the issue spark-9011 of version 1.4.0 ? I'm getting the "rawPredictionCol
>>>> column doesn't exist" when trying to perform a grid search with Spark 1.4.0.
>>>>
>>>> Cheers,
>>>> Ardo
>>>>
>>>>
>>>>
>>>>
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>>>

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