move file with main to test package
do the associated refactoring
fix import
fix import
move node test to a dedicated file
delete main method in Node
format file
fix import
moving Node to prefixtree package
do the refactoring
extract tests of document statics

moving it to a dedicated file
removing unused analyser
fix import
adding first main elements
creating printstream of arff file
removing unused test and file
making documents a class member
deleting document statistics
creating a constructore for ArffWriter
create method to create header data