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From Benjamin Fradet <benjamin.fra...@gmail.com>
Subject Re: Grid search with Random Forest
Date Tue, 01 Dec 2015 07:32:08 GMT
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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