Thanks Fazlan for reporting this issue. This issue is due to the improvements done in feature type (categorical/numerical) identification algorithm.
In the above mentioned samples, wine-quality dataset [1] has been used. According to the new algorithm, the response variable quality, is identified as a categorical feature. As all these are numerical prediction algorithms, and require a numerical variable as the response variable, this exception[2] is thrown. I've fixed it in [3] [1] https://archive.ics.uci.edu/ml/datasets/Wine+Quality [2] org.wso2.carbon.ml.core.exceptions.MLModelBuilderException: An error occurred while building supervised machine learning model: Categorical attribute quality cannot be used as the response variable of the Numerical Prediction algorithm: [3] https://github.com/wso2/product-ml/pull/228 Thanks. On Wed, Aug 26, 2015 at 8:26 PM, Nirmal Fernando <nir...@wso2.com> wrote: > Thanks a lot Fazlan! @Mano please fix these issues on samples asap. > > On Wed, Aug 26, 2015 at 7:13 PM, Fazlan Nazeem <fazl...@wso2.com> wrote: > >> Hi Nirmal, >> >> I have run the samples with the latest build and some of the samples >> cannot be successfully executed. Error messages for each failed sample is >> same in the first glance, but I have included(the links) the stack trace >> just in case if they are different. >> >> *failed samples* >> >> ---default--- >> >> - lasso-regression http://pastie.org/10376887 >> - linear-regression http://pastie.org/10376932 >> >> --tuned-- >> >> - linear-regression http://pastie.org/10376981 >> - lasso-regression http://pastie.org/10376987 >> <http://pastie.org/10376987> >> - ridge-regression http://pastie.org/10376992 >> >> >> I haven't tested the "*logistic-regression-with-hdfs" *sample yet ( >> because It needs a hadoop server running. Will do it) >> >> >> -- >> Fazlan Nazeem >> >> *Software Engineer* >> >> *WSO2 Inc* >> Mobile : +94772338839 >> <%2B94%20%280%29%20773%20451194> >> fazl...@wso2.com >> > > > > -- > > Thanks & regards, > Nirmal > > Team Lead - WSO2 Machine Learner > Associate Technical Lead - Data Technologies Team, WSO2 Inc. > Mobile: +94715779733 > Blog: http://nirmalfdo.blogspot.com/ > > > -- Manorama Perera Software Engineer WSO2, Inc.; http://wso2.com/ Mobile : +94716436216
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