public static Map<String, Double> calculate(Id2Outcome id2Outcome) { Map<String, Double> results = new HashMap<String, Double>(); Double[] goldstandard = ArrayUtils.toObject(id2Outcome.getGoldValues()); Double[] prediction = ArrayUtils.toObject(id2Outcome.getPredictions()); results.put(SpearmanCorrelation.class.getSimpleName(), SpearmansRankCorrelation.computeCorrelation(Arrays.asList(goldstandard), Arrays.asList(prediction))); return results; } }