Could you post a piece of code here? On Sun, Jan 11, 2015 at 9:28 PM, Meethu Mathew <meethu.mat...@flytxt.com> wrote: > Hi, > Thanks Davies . > > I added a new class GaussianMixtureModel in clustering.py and the method > predict in it and trying to pass numpy array from this method.I converted it > to DenseVector and its solved now. > > Similarly I tried passing a List of more than one dimension to the function > _py2java , but now the exception is > > 'list' object has no attribute '_get_object_id' > > and when I give a tuple input (Vectors.dense([0.8786, > -0.7855]),Vectors.dense([-0.1863, 0.7799])) exception is like > > 'numpy.ndarray' object has no attribute '_get_object_id' > > Regards, > > > > Meethu Mathew > > Engineer > > Flytxt > > www.flytxt.com | Visit our blog | Follow us | Connect on Linkedin > > > > On Friday 09 January 2015 11:37 PM, Davies Liu wrote: > > Hey Meethu, > > The Java API accepts only Vector, so you should convert the numpy array into > pyspark.mllib.linalg.DenseVector. > > BTW, which class are you using? the KMeansModel.predict() accept > numpy.array, > it will do the conversion for you. > > Davies > > On Fri, Jan 9, 2015 at 4:45 AM, Meethu Mathew <meethu.mat...@flytxt.com> > wrote: > > Hi, > I am trying to send a numpy array as an argument to a function predict() in > a class in spark/python/pyspark/mllib/clustering.py which is passed to the > function callMLlibFunc(name, *args) in > spark/python/pyspark/mllib/common.py. > > Now the value is passed to the function _py2java(sc, obj) .Here I am > getting an exception > > Py4JJavaError: An error occurred while calling > z:org.apache.spark.mllib.api.python.SerDe.loads. > : net.razorvine.pickle.PickleException: expected zero arguments for > construction of ClassDict (for numpy.core.multiarray._reconstruct) > at > net.razorvine.pickle.objects.ClassDictConstructor.construct(ClassDictConstructor.java:23) > at net.razorvine.pickle.Unpickler.load_reduce(Unpickler.java:617) > at net.razorvine.pickle.Unpickler.dispatch(Unpickler.java:170) > at net.razorvine.pickle.Unpickler.load(Unpickler.java:84) > at net.razorvine.pickle.Unpickler.loads(Unpickler.java:97) > > > Why common._py2java(sc, obj) is not handling numpy array type? > > Please help.. > > > -- > > Regards, > > *Meethu Mathew* > > *Engineer* > > *Flytxt* > > www.flytxt.com | Visit our blog <http://blog.flytxt.com/> | Follow us > <http://www.twitter.com/flytxt> | _Connect on Linkedin > <http://www.linkedin.com/home?trk=hb_tab_home_top>_ > >
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