min support parameter ignored in FPGrowth
-----------------------------------------
Key: MAHOUT-378
URL: https://issues.apache.org/jira/browse/MAHOUT-378
Project: Mahout
Issue Type: Bug
Components: Frequent Itemset/Association Rule Mining
Reporter: Robert Neumayer
Priority: Trivial
The minSupport parameter is never read in
generateFList(Iterator<Pair<List<A>,Long>> transactions, int minSupport)
One solution is to drop the parameter, i.e.:
generateFList(Iterator<Pair<List<A>,Long>> transactions)
I guess this would do the filtering:
List<Pair<A, Long>> fList = new ArrayList<Pair<A, Long>>();
for (Entry<A, MutableLong> e : attributeSupport.entrySet()) {
if (e.getValue().intValue() >= minSupport) {
fList.add(new Pair<A, Long>(e.getKey(),
e.getValue()
.longValue()));
}
}
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