code: public static DataQualityAnalysis analyzeQualitySequence(Schema schema, JavaRDD<List<List<Writable>>> data) {
          JavaRDD<List<Writable>> fmSeq = data.flatMap(new SequenceFlatMapFunction());
          return analyzeQuality(schema, fmSeq);
      }
docs: Analyze the data quality of sequence data - provides a report on missing values, values that don't comply with schema, etc
  @param schema Schema for data
  @param data   Data to analyze
  @return DataQualityAnalysis object