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From Robin Anil <robin.a...@gmail.com>
Subject Re: Default value of numGroups in FPGrowthJob
Date Tue, 06 Sep 2011 11:51:52 GMT
you can do --help on the command to see the current default value for any
flag

On Tue, Sep 6, 2011 at 2:43 PM, yuji anzai <d03136@gmail.com> wrote:

> Hi,
>
> I tried FPGrowthJob using mahout command below.
> 1. $MAHOUT_HOME/bin/mahout fpg -i /input/retail.dat -o /output/numgdef/
> -method mapreduce -regex '[\s]' -s 100
> 2. $MAHOUT_HOME/bin/mahout fpg -i /input/retail.dat -o /output/numg50/
> -method mapreduce -regex '[\s]' -s 100 --numGroups 50
> 3. $MAHOUT_HOME/bin/mahout fpg -i /input/retail.dat -o /output/numg1000/
> -method mapreduce -regex '[\s]' -s 100 --numGroups 1000
>
> 1. and 2. were same results. but 3.(--numGroups 1000) was different.
>
> The document page shows numGroups default 1000.
>
> https://cwiki.apache.org/confluence/display/MAHOUT/Parallel+Frequent+Pattern+Mining
>
> I think default value is 50. Is my thinking right?
>
> Yuji
>

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