Database Reference
In-Depth Information
printed to stdout.
-r <name>
The name of the relation.
-d
Whether to print debug informations.
-S
The seed for random function (default 1)
-n <num>
The number of examples to generate (default 100)
-A <num>
The amplitude multiplier (default 1.0).
-R <num>..<num>
The range x is randomly drawn from (default -10.0..10.0).
-N <num>
The noise rate (default 0.0).
-V <num>
The noise variance (default 1.0).
Now that's usable. The following class, for example, is not usable:
$
weka filters.SimpleFilter -h
java.lang.ClassNotFoundException: -h
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:171)
at weka.filters.Filter.main(Filter.java:1344)
-h
The following pipeline runs
weka
with the
-h
option for every class in
weka.jar
and
saves the standard output and standard error to a file with the same name as the class:
$
unzip -l
$WEKAPATH
/weka.jar |
>
sed -rne
's/.*(weka)\/([^g])([^$]*)\.class$/\2\3/p'
|
>
tr
'/'
'.'
|
>
parallel --timeout 1 -j4 -v
"weka {} -h > {} 2>&1"
We now have 749 files. With the following command, we save the filename of every
files that does not contain the string
Exception
to
weka.classes
:
$
grep -L
'Exception'
* | tee
$WEKAPATH
/weka.classes
This still comes down to 332 classes! Here are a few classes that might be of interest:
•
attributeSelection.PrincipalComponents
•
classifiers.bayes.NaiveBayes
•
classifiers.evaluation.ConfusionMatrix
