I'm running J48 with around 20 values per attribute for 5 attributes and
am very pleased with your product. When piping the results into the graph
viewer, however, the tree it produces appears a bit crammed together and
unreadable. Is there any way of manually stretching/increasing the size of
the tree so as to increase readability?
Many thanks, Peter. I have double checked. Yes, you are right, it works
[mailto:email@example.com] On Behalf Of Peter
Sent: 01 April 2007 01:42
To: Weka machine learning workbench list.
Subject: Re: [Wekalist] creating arff file: problem with minus number
> Pls help me to solve the problem which I have encountered when
> creating the arff file. Actually, I have the minus value (e.g. -120,
> -45) in each variable. When I load the arff file into the weka, it
> File "Tc.arff" not recognised as an arff file. Reason: premature end
> of line, read Token(EOL), line 17.
Without seeing the files it's hard to tell (it would help, if you could
post the first 20-30 lines of your "Tc.arff" file - the error happens in
line 17). The EOL (= end of line) error normally happens if Weka is
expecting to read more attribute values than there are in that line.
This could derive from not enough values in that line or from wrongly
quoted strings/nominal values (thus resulting in a wrong number of
> I am loading all *.arff with value over "0", it works fine. I
> definitely sure that the problem happens because of minus value in my
As what type of attribute are these negative numbers declared? numeric
> Any ideal to tell the weka to accept those minus number.
If it's a numeric attribute, nothing needs to be done. Nominal values
must list all the possible values in the header.
Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ
http://www.cs.waikato.ac.nz/~fracpete/ Ph. +64 (7) 858-5174
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