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https://issues.apache.org/jira/browse/SYSTEMML-2350?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias Boehm closed SYSTEMML-2350.
------------------------------------
       Resolution: Fixed
         Assignee: Matthias Boehm
    Fix Version/s: SystemML 1.2

> Missing support for as.scalar casts of lists
> --------------------------------------------
>
>                 Key: SYSTEMML-2350
>                 URL: https://issues.apache.org/jira/browse/SYSTEMML-2350
>             Project: SystemML
>          Issue Type: Bug
>            Reporter: Matthias Boehm
>            Assignee: Matthias Boehm
>            Priority: Major
>             Fix For: SystemML 1.2
>
>
> {code}
> Caused by: org.apache.sysml.parser.LanguageException: Unsupported Parameters 
> : ERROR: 
> ./src/test/scripts/functions/paramserv/mnist_lenet_paramserv_minimum_version.dml
>  [line 237:5] -> lr = as.scalar(hyperparams['lr']); -- Expecting matrix or 
> frame parameter for function CAST_AS_SCALAR
>       at 
> org.apache.sysml.parser.Expression.raiseValidateError(Expression.java:543)
>       at 
> org.apache.sysml.parser.BuiltinFunctionExpression.checkMatrixFrameParam(BuiltinFunctionExpression.java:1516)
>       at 
> org.apache.sysml.parser.BuiltinFunctionExpression.validateExpression(BuiltinFunctionExpression.java:502)
>       at 
> org.apache.sysml.parser.StatementBlock.validateAssignmentStatement(StatementBlock.java:804)
>       at 
> org.apache.sysml.parser.StatementBlock.validate(StatementBlock.java:747)
>       at 
> org.apache.sysml.parser.FunctionStatementBlock.validate(FunctionStatementBlock.java:69)
>       at 
> org.apache.sysml.parser.DMLTranslator.validateParseTree(DMLTranslator.java:136)
>       at 
> org.apache.sysml.parser.DMLTranslator.validateParseTree(DMLTranslator.java:109)
>       at org.apache.sysml.api.DMLScript.execute(DMLScript.java:697)
>       at org.apache.sysml.api.DMLScript.executeScript(DMLScript.java:515)
> {code}



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