When I ran one of the programs in SMPF (eg. MainTestEFIM_saveToFile) and I used my own data (I have already changed the name of the file in the program) I've error like this:

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 48
at ca.pfv.spmf.algorithms.frequentpatterns.efim.Dataset.createTransaction(Dataset.java:101)
at ca.pfv.spmf.algorithms.frequentpatterns.efim.Dataset.<init>(Dataset.java:61)
at ca.pfv.spmf.algorithms.frequentpatterns.efim.AlgoEFIM.runAlgorithm(AlgoEFIM.java:139)
at ca.pfv.spmf.test.MainTestEFIM_saveToFile.main(MainTestEFIM_saveToFile.java:28)
Java Result: 1

how can I resolve that problem? Any constraint about data?

Tq for help

Hello

The most likely problem is that the name of the items in your input file are not contiguous.

Items should have names like 1,2,3,4,5..., that is they should be contiguous.

But if in your files you have items like 100, 200, 300, 400, 500, then the names of the items are not contiguous. I think it may be the problem.

If you use the user interface of SPMF, there is a tool called "Fixed_item_ids_in_transaction_database" that can automatically fix this problem in your file.“

If it still does not work, you may send me your file by e-mail and I can check it for other problems.

Best,

Philippe

Hello

Tq for your help. I'll try your suggestion


Regard,
Ridowati