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Convert ARFF files to XML or JSON
I use WEKA for data mining, which uses ARFF files. WEKA is a powerful tool, but sometimes I want to look at the datasets in a more universal format where I can manipulate them as I please. This Python script will convert ARFF files to XML or JSON. Usage: ./arff_parser.py [filename1.arff filename2.arff ... ] [-json | -xml] [--debug] # Debug mode will print a variable dump of the schema read in. Default value is False. Expects: - a WEKA file ('some-filename.arff') formatted as follows: @relation <dataset-name> % Comments (ignored) @attribute1 [{value1,value2,value3} | datatype] @attribute2 [{value1,value2,value3} | datatype] ... @data [attr1,attr2,...] [attr1,attr2,...] [attr1,attr2,...] [attr1,attr2,...] Outputs: -json: 'some-filename.json' { "relation":dataset-name, "attributes":[ {'name':attribute1,'values': [value1,value2...]}, {'name':attribute2,'values': [value1,value2...]} ], "data":[ {attr1:val1,attr2:val2...}, {attr1:val1,attr2:val2...}, {attr1:val1,attr2:val2...}, ... ] } -xml: 'some-filename.xml' <dataset> <relation>dataset-name</relation> <attributes> <attribute> <name>attribute1</name> <values>real</values> </attribute> <attribute> <name>attribute2</name> <values> <value>val1</value> <value>val2</value> <value>val3</value> <value>...</value> </values> </attribute> </attributes> <data> <entry><attr1>val</attr1><attr2>val</attr2>...</entry> <entry><attr1>val</attr1><attr2>val</attr2>...</entry> ... </data> </dataset>
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