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Yanbo Liang edited comment on SPARK-6496 at 3/24/15 12:08 PM: -------------------------------------------------------------- [~srowen] I have address this issue at github. I guess you have seen it. was (Author: yanboliang): [~srowen] I have address this issue at github. > Multinomial Logistic Regression failed when initialWeights is not null > ---------------------------------------------------------------------- > > Key: SPARK-6496 > URL: https://issues.apache.org/jira/browse/SPARK-6496 > Project: Spark > Issue Type: Bug > Components: MLlib > Affects Versions: 1.3.0 > Reporter: Yanbo Liang > > This bug is easy to reproduce, when use Multinomial Logistic Regression to > train multiclass classification model with non-null initialWeights, it will > throw an exception. > When you run > {code} > val lr = new LogisticRegressionWithLBFGS().setNumClasses(3) > val model = lr.run(input, initialWeights) > {code} > It will throw > {code} > requirement failed: LogisticRegressionModel.load with numClasses = 3 and > numFeatures = -1 expected weights of length -2 (without intercept) or 0 (with > intercept), but was given weights of length 10 > java.lang.IllegalArgumentException: requirement failed: > LogisticRegressionModel.load with numClasses = 3 and numFeatures = -1 > expected weights of length -2 (without intercept) or 0 (with intercept), but > was given weights of length 10 > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org