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From Benjamin Fradet <benjamin.fra...@gmail.com>
Subject Re: Grid search with Random Forest
Date Tue, 01 Dec 2015 13:10:48 GMT
Someone correct me if I'm wrong but no there isn't one that I am aware of.

Unless someone is willing to explain how to obtain the raw prediction
column with the GBTClassifier. In this case I'd be happy to work on a PR.
On 1 Dec 2015 8:43 a.m., "Ndjido Ardo BAR" <ndjido@gmail.com> wrote:

> 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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