Ok, i guess i have to run
$MAVEN_HOME/bin/mvn -f $MY_PATH/mahout/examples/pom.xml -q exec:java
-Dexec.mainClass="org.apache.mahout.cf.taste.example.grouplens.GroupLensRecommenderEvaluatorRunner"
-Dexec.args="-i ratings-modified.dat"
that still returns an error due to the unexpected input format :
[ERROR] Failed to execute goal
org.codehaus.mojo:exec-maven-plugin:1.2:java (default-cli) on project
mahout-examples: An exception occured while executing the Java class.
null: InvocationTargetException: Unexpected input format on line:
1,1193,5,978300760 -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the
-e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions,
please read the following articles:
[ERROR] [Help 1]
http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
Then, i've tryied to run it with the original file (the file with '::').
In this case the input file seem to be, the example finishes and i get
the file /var/folders/qN/qNNZz6mEGCm0xe6CxuiceE+++TI/-Tmp-/ratings.txt
I suppose to find there the results of the recommendation on GroupLens
input data.
Thanks for your help.
Regards.
cristian
