Thanks for the clarification. Gonna test that and give you feedbacks. Ndjido On Tue, 1 Dec 2015 at 19:29, Joseph Bradley <jos...@databricks.com> wrote:
> You can do grid search if you set the evaluator to a > MulticlassClassificationEvaluator, which expects a prediction column, not a > rawPrediction column. There's a JIRA for making > BinaryClassificationEvaluator accept prediction instead of rawPrediction. > Joseph > > On Tue, Dec 1, 2015 at 5:10 AM, Benjamin Fradet <benjamin.fra...@gmail.com > > wrote: > >> 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" <ndj...@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.fra...@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" <ndj...@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 <jos...@databricks.com> >>>>> wrote: >>>>> >>>>>> It should work with 1.5+. >>>>>> >>>>>> On Thu, Nov 26, 2015 at 12:53 PM, Ndjido Ardo Bar <ndj...@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 >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> --------------------------------------------------------------------- >>>>>>> To unsubscribe, e-mail: user-unsubscr...@spark.apache.org >>>>>>> For additional commands, e-mail: user-h...@spark.apache.org >>>>>>> >>>>>>> >>>>>> >
