Re: Extracting an element from the feature vector in LabeledPoint
Hi all, Somehow related to this question and this data structure, what is the best way to extract features using names instead of positions? Of course, it is previously necessary to store the names in some way... Thanks in advance -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Extracting-an-element-from-the-feature-vector-in-LabeledPoint-tp0p12644.html Sent from the Apache Spark User List mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-unsubscr...@spark.apache.org For additional commands, e-mail: user-h...@spark.apache.org
Re: Extracting an element from the feature vector in LabeledPoint
I am using 1.0.1. It does not matter to me whether it is the first or second element. I would like to know how to extract the i-th element in the feature vector (not the label). data.features(i) gives the following error: method apply in trait Vector cannot be accessed in org.apache.spark.mllib.linalg.Vector -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Extracting-an-element-from-the-feature-vector-in-LabeledPoint-tp0p11181.html Sent from the Apache Spark User List mailing list archive at Nabble.com.
Re: Extracting an element from the feature vector in LabeledPoint
Oh I'm sorry, I somehow misread your email as looking for the label. I read too fast. That was pretty silly. THis works for me though: scala val point = LabeledPoint(1,Vectors.dense(2,3,4)) point: org.apache.spark.mllib.regression.LabeledPoint = (1.0,[2.0,3.0,4.0]) scala point.features(1) res10: Double = 3.0 On Fri, Aug 1, 2014 at 6:22 PM, SK skrishna...@gmail.com wrote: I am using 1.0.1. It does not matter to me whether it is the first or second element. I would like to know how to extract the i-th element in the feature vector (not the label). data.features(i) gives the following error: method apply in trait Vector cannot be accessed in org.apache.spark.mllib.linalg.Vector -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Extracting-an-element-from-the-feature-vector-in-LabeledPoint-tp0p11181.html Sent from the Apache Spark User List mailing list archive at Nabble.com.
