Hi Tri, setIntercept() is not a member function of StreamingLinearRegressionWithSGD, it's a member function of LinearRegressionWithSGD(GeneralizedLinearAlgorithm) which is a member variable(named algorithm) of StreamingLinearRegressionWithSGD.
So you need to change your code to: val model = new StreamingLinearRegressionWithSGD().setInitialWeights(Vectors.zeros(args(3).toInt)) .algorithm.setIntercept(true) Thanks Yanbo 2014-11-25 23:51 GMT+08:00 Bui, Tri <tri....@verizonwireless.com.invalid>: > Thanks Liang! > > > > It was my bad, I fat finger one of the data point, correct it and the > result match with yours. > > > > I am still not able to get the intercept. I am getting [error] > /data/project/LinearRegression/src/main/scala/StreamingLinearRegression.scala:47: > value setIntercept > > mber of org.apache.spark.mllib.regression.StreamingLinearRegressionWithSGD > > > > I try code below: > > val model = new > StreamingLinearRegressionWithSGD().setInitialWeights(Vectors.zeros(args(3).toInt)) > > model.setIntercept(addIntercept = true).trainOn(trainingData) > > > > and: > > > > val model = new > StreamingLinearRegressionWithSGD().setInitialWeights(Vectors.zeros(args(3).toInt)) > > .setIntercept(true) > > > > But still get compilation error. > > > > Thanks > > Tri > > > > > > > > > > *From:* Yanbo Liang [mailto:yanboha...@gmail.com] > *Sent:* Tuesday, November 25, 2014 4:08 AM > *To:* Bui, Tri > *Cc:* user@spark.apache.org > *Subject:* Re: Inaccurate Estimate of weights model from > StreamingLinearRegressionWithSGD > > > > The case run correctly in my environment. > > > > 14/11/25 17:48:20 INFO regression.StreamingLinearRegressionWithSGD: Model > updated at time 1416908900000 ms > > 14/11/25 17:48:20 INFO regression.StreamingLinearRegressionWithSGD: > Current model: weights, [0.9999999999998588] > > > > Can you provide more detail information if it is convenience？ > > > > Turn on the intercept value can be set as following: > > val model = new StreamingLinearRegressionWithSGD() > > .algorithm.setIntercept(true) > > > > 2014-11-25 3:31 GMT+08:00 Bui, Tri <tri....@verizonwireless.com.invalid>: > > Hi, > > > > I am getting incorrect weights model from StreamingLinearRegressionwith > SGD. > > > > One feature Input data is: > > > > (1,[1]) > > (2,[2]) > > … > > . > > (20,[20]) > > > > The result from the Current model: weights is [-4.432]….which is not > correct. > > > > Also, how do I turn on the intercept value for the > StreamingLinearRegression ? > > > > Thanks > > Tri > > >
