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https://issues.apache.org/jira/browse/MAHOUT-948?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sean Owen resolved MAHOUT-948.
------------------------------
Resolution: Fixed
Fix Version/s: 0.7
Assignee: Sean Owen
> Improved error reporting when ARFF index does not exist in arff.vector [fix
> provided]
> -------------------------------------------------------------------------------------
>
> Key: MAHOUT-948
> URL: https://issues.apache.org/jira/browse/MAHOUT-948
> Project: Mahout
> Issue Type: Improvement
> Components: Integration
> Environment: I just pulled the latest from SVN today (01/17/2012)
> Reporter: Stuart Smith
> Assignee: Sean Owen
> Priority: Trivial
> Labels: patch
> Fix For: 0.7
>
> Attachments: MapBackedARFFModel.java
>
> Original Estimate: 0h
> Remaining Estimate: 0h
>
> MapBackedARFFModel throws an NPE when getValue is passed an idx for an
> attribute that does not exist.
> In short, this:
> <code>
> public double getValue(String data, int idx) {
> ARFFType type = typeMap.get(idx);
> data = QUOTE_PATTERN.matcher(data).replaceAll("");
> data = data.trim();
> double result;
> if( type == null ) {
> throw new IllegalStateException( "Attribute type cannot be NULL,
> attribute index was: " + idx );
> }
> switch (type) {
> case NUMERIC:
> result = processNumeric(data);
> </code>
> Is better than this:
> <code>
> public double getValue(String data, int idx) {
> ARFFType type = typeMap.get(idx);
> data = QUOTE_PATTERN.matcher(data).replaceAll("");
> data = data.trim();
> double result;
> switch (type) {
> case NUMERIC:
> result = processNumeric(data);
> </code>
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