[jira] (SYSTEMML-1221) predict in LinearRegression Mllearn wrapper fails in Python

[Berthold Reinwald (JIRA)]

Title: Message Title

Berthold Reinwald created an issue   SystemML / SYSTEMML-1221 predict in LinearRegression Mllearn wrapper fails in Python Issue Type: Bug Assignee: Unassigned Components: APIs Created: 31/Jan/17 08:30 Due Date: 01/Mar/17 Priority: Major Reporter: Berthold Reinwald from pyspark.sql import SQLContext from systemml.mllearn import LinearRegression sqlCtx = SQLContext(sc) regr = LinearRegression(sqlCtx) Train the model using the training sets regr.fit(diabetes_X_train, diabetes_y_train) regr.predict(diabetes_X_test) Traceback (most recent call last): File "/gpfs/fs01/user/s97f-e8039831bd320d-6262032d0bcc/.local/lib/python2.7/site-packages/systemml/mllearn/estimators.py", line 170, in predict retNumPy = self.decode(convertToNumPyArr(self.sc, self.model.transform(convertToMatrixBlock(self.sc, X)))) File "/usr/local/src/spark160master/spark/python/lib/py4j-0.9-src.zip/py4j/java_gateway.py", line 813, in _call_ answer, self.gateway_client, self.target_id, self.name) File "/usr/local/src/spark160master/spark/python/pyspark/sql/utils.py", line 45, in deco return f(*a, **kw) File "/usr/local/src/spark160master/spark/python/lib/py4j-0.9-src.zip/py4j/protocol.py", line 308, in get_return_value format(target_id, ".", name), value) Py4JJavaError: An error occurred while calling o132.transform. : org.apache.sysml.api.mlcontext.MLContextException: Exception when executing script at org.apache.sysml.api.mlcontext.MLContext.execute(MLContext.java:307) at org.apache.sysml.api.mlcontext.MLContext.execute(MLContext.java:276) at org.apache.sysml.api.ml.BaseSystemMLRegressorModel$class.baseTransform(BaseSystemMLRegressor.scala:65) at org.apache.sysml.api.ml.LinearRegressionModel.baseTransform(LinearRegression.scala:83) at org.apache.sysml.api.ml.LinearRegressionModel.transform(LinearRegression.scala:95) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:95) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55) at java.lang.reflect.Method.invoke(Method.java:507) at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:231) at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:381) at py4j.Gateway.invoke(Gateway.java:259) at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:133) at py4j.commands.CallCommand.execute(CallCommand.java:79) at py4j.GatewayConnection.run(GatewayConnection.java:209) at java.lang.Thread.run(Thread.java:785) Caused by: org.apache.sysml.api.mlcontext.MLContextException: Exception occurred while validating script at org.apache.sysml.api.mlcontext.ScriptExecutor.validateScript(ScriptExecutor.java:553) at org.apache.sysml.api.mlcontext.ScriptExecutor.execute(ScriptExecutor.java:307) at org.apache.sysml.api.mlcontext.MLContext.execute(MLContext.java:299) ... 15 more Caused by: org.apache.sysml.parser.LanguageException: Invalid Parameters : ERROR: null – line 206, column 12 – Mismatch in matrix dimensions of parameters for function TABLE at org.apache.sysml.parser._expression_.raiseValidateError(_expression_.java:556) at org.apache.sysml.parser.BuiltinFunctionExpression.checkMatchingDimensions(BuiltinFunctionExpression.java:1447) at org.apache.sysml.parser.BuiltinFunctionExpression.checkMatchingDimensions(BuiltinFunctionExpression.java:1428) at org.apache.sysml.parser.BuiltinFunctionExpression.validateExpression(BuiltinFunctionExpression.java:677) at org.apache.sysml.parser.StatementBlock.validate(StatementBlock.java:567) at org.apache.sysml.parser.IfStatementBlock.validate(IfStatementBlock.java:70) at org.apache.sysml.parser.IfStatementBlock.validate(IfStatementBlock.java:70) at org.apache.sysml.parser.IfStatementBlock.validate(IfStatementBlock.java:77) at org.apache.sysml.parser.IfStatementBlock.validate(IfStatementBlock.java:70) at org.apache.sysml.parser.DMLTranslator.validateParseTree(DMLTranslator.java:140) at org.apache.sysml.api.mlcontext.ScriptExecutor.validateScript(ScriptExecutor.java:551) ... 17 more UnboundLocalErrorTraceback (most recent call last) <ipython-input-51-d88481946cc5> in <module>() ----> 1 regr.predict(diabetes_X_test) /gpfs/fs01/user/s97f-e8039831bd320d-6262032d0bcc/.local/lib/python2.7/site-packages/systemml/mllearn/estimators.pyc in predict(self, X) 172 traceback.print_exc() 173 if isinstance(X, np.ndarray): --> 174 return retNumPy 175 else: 176 return retNumPy # TODO: Convert to Pandas UnboundLocalError: local variable 'retNumPy' referenced before assignment Add Comment   This message was sent by Atlassian JIRA (v6.3.15#6346-sha1:dbc023d)