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https://issues.apache.org/jira/browse/SPARK-6290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14511786#comment-14511786
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Joseph K. Bradley commented on SPARK-6290:
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Thanks! I should have realized that. I'll mark this as resolved. However, it
could be nice to move checkColumnType back to Params so that it can print out
info about the incorrectly specified column. I'll make a JIRA for that.
> spark.ml.param.Params.checkInputColumn bug upon error
> -----------------------------------------------------
>
> Key: SPARK-6290
> URL: https://issues.apache.org/jira/browse/SPARK-6290
> Project: Spark
> Issue Type: Bug
> Components: ML
> Affects Versions: 1.3.0
> Reporter: Joseph K. Bradley
> Priority: Minor
>
> In checkInputColumn, if data types do not match, it tries to print an error
> message with this in it:
> {code}
> Column param description: ${getParam(colName)}"
> {code}
> However, getParam cannot be called on the string colName; it needs the
> parameter name, which this method is not given. This causes a weird error
> which users may find hard to understand.
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