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The following page has been changed by CorinneC: http://wiki.apache.org/pig/PigTutorial ------------------------------------------------------------------------------ * Uses the GROUP command to group records by n-gram only. * Calls the !ScoreGenerator UDF to calculate a "popularity" score for the n-gram. * Uses the GENERATE command to assign names to the fields. - * Uses the FILTER command to move all records with a score less than or equal to 2.0. + * Uses the [http://wiki.apache.org/pig/PigLatin#FILTER:_Getting_rid_of_data_you_are_not_interested_in_ FILTER] command to move all records with a score less than or equal to 2.0. * Uses the ORDER command to sort the remaining records by hour and score. * Uses the !PigStorage function to store the results. The output file contains a list of n-grams with the following fields: '''hour''', '''ngram''', '''score''', '''count''', '''mean''' @@ -124, +124 @@ * Uses the GROUP command to group the records by n-gram and hour. * Uses the COUNT function to get the count (occurrences) of each n-gram. * Uses the GENERATE command to assign names to the fields. - * Uses the FILTER command to get the n-grams for hour â00â - * Uses the FILTER command to get the n-grams for hour â12â + * Uses the [http://wiki.apache.org/pig/PigLatin#FILTER:_Getting_rid_of_data_you_are_not_interested_in_ FILTER] command to get the n-grams for hour â00â + * Uses the [http://wiki.apache.org/pig/PigLatin#FILTER:_Getting_rid_of_data_you_are_not_interested_in_ FILTER] command to get the n-grams for hour â12â * Uses the JOIN command to join the n-grams in hour â00â and hour â12â by field $0 * Uses the COUNT function to get the count (occurrences) of the n-grams in both â00â and â12â * Uses the !PigStorage function to store the results. The output file contains a list of n-grams with the following fields: '''hour''', '''count00''', '''count12'''
