Sophie Sperner created MAHOUT-1225:
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Summary: OpenIntHashSet does not work as expected
Key: MAHOUT-1225
URL: https://issues.apache.org/jira/browse/MAHOUT-1225
Project: Mahout
Issue Type: Bug
Components: Math
Affects Versions: 0.7
Environment: Eclipse, linux Fedora 17, Java 1.7, Mahout Maths
collections (Set) 0.7, hppc 0.4.3
Reporter: Sophie Sperner
Fix For: 0.7
The code I'm going to attach hangs one, Eclipse does not print me its stack
trace because it does not terminate the program. So I decided to make a small
test.java file that you can easily run.
This code has the main function that simply runs getItemList() method which
successfully executes getDataset() method (here please download mushroom.dat
dataset and set the full path into filePath string variable) and the hangs on
(the problem happens on a fourth columnValues.add() call). After the dataset
was taken into X array, the code simply goes through X column by column and
searches for different items in it.
If you uncomment IntSet columnValues = new IntOpenHashSet(); and corresponding
import headers then everything will work just fine (you will also need to
include hppc jar file found here http://labs.carrotsearch.com/hppc.html).
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