Also try out these examples, all of them works.... http://docs.sigmoidanalytics.com/index.php/MLlib
if you spot any problems in those, let us know. Regards, arpit On Wed, Apr 23, 2014 at 11:08 PM, Matei Zaharia <matei.zaha...@gmail.com>wrote: > See http://people.csail.mit.edu/matei/spark-unified-docs/ for a more > recent build of the docs; if you spot any problems in those, let us know. > > Matei > > On Apr 23, 2014, at 9:49 AM, Xiangrui Meng <men...@gmail.com> wrote: > > > The doc is for 0.9.1. You are running a later snapshot, which added > > sparse vectors. Try LabeledPoint(parts(0).toDouble, > > Vectors.dense(parts(1).split(' ').map(x => x.toDouble)). The examples > > are updated in the master branch. You can also check the examples > > there. -Xiangrui > > > > On Wed, Apr 23, 2014 at 9:34 AM, Mohit Jaggi <mohitja...@gmail.com> > wrote: > >> > >> sorry...added a subject now > >> > >> On Wed, Apr 23, 2014 at 9:32 AM, Mohit Jaggi <mohitja...@gmail.com> > wrote: > >>> > >>> I am trying to run the example linear regression code from > >>> > >>> http://spark.apache.org/docs/latest/mllib-guide.html > >>> > >>> But I am getting the following error...am I missing an import? > >>> > >>> ----code---- > >>> > >>> import org.apache.spark._ > >>> > >>> import org.apache.spark.mllib.regression.LinearRegressionWithSGD > >>> > >>> import org.apache.spark.mllib.regression.LabeledPoint > >>> > >>> > >>> object ModelLR { > >>> > >>> def main(args: Array[String]) { > >>> > >>> val sc = new SparkContext(args(0), "SparkLR", > >>> > >>> System.getenv("SPARK_HOME"), > >>> SparkContext.jarOfClass(this.getClass).toSeq) > >>> > >>> // Load and parse the data > >>> > >>> val data = sc.textFile("mllib/data/ridge-data/lpsa.data") > >>> > >>> val parsedData = data.map { line => > >>> > >>> val parts = line.split(',') > >>> > >>> LabeledPoint(parts(0).toDouble, parts(1).split(' ').map(x => > >>> x.toDouble).toArray) > >>> > >>> } > >>> > >>> ...<snip>... > >>> > >>> } > >>> > >>> ----error---- > >>> > >>> - polymorphic expression cannot be instantiated to expected type; > found : > >>> [U >: Double]Array[U] required: > >>> > >>> org.apache.spark.mllib.linalg.Vector > >>> > >>> - polymorphic expression cannot be instantiated to expected type; > found : > >>> [U >: Double]Array[U] required: > >>> > >>> org.apache.spark.mllib.linalg.Vector > >> > >> > >
