X-Git-Url: http://nitlanguage.org

diff --git a/src/metrics/metrics_base.nit b/src/metrics/metrics_base.nit
index c99ec62..ba4856e 100644
--- a/src/metrics/metrics_base.nit
+++ b/src/metrics/metrics_base.nit
@@ -197,6 +197,9 @@ interface Metric
 		end
 	end
 
+	# The sum of all the values.
+	fun sum: VAL is abstract
+
 	# The values standard derivation
 	fun std_dev: Float is abstract
 
@@ -211,6 +214,11 @@ interface Metric
 
 	# The set of element above the threshold
 	fun above_threshold: Set[ELM] is abstract
+
+	# Sort the metric keys by values
+	fun sort: Array[ELM] do
+		return values.keys_sorted_by_values(default_reverse_comparator)
+	end
 end
 
 # A Metric that collects integer data
@@ -227,7 +235,7 @@ class IntMetric
 
 	redef fun clear do values_cache.clear
 
-	fun sum: Int do return values_cache.sum
+	redef fun sum do return values_cache.sum
 
 	redef fun max do
 		assert not values_cache.is_empty
@@ -240,9 +248,9 @@ class IntMetric
 	end
 
 	# Values average
-	redef fun avg: Float do return values_cache.avg
+	redef fun avg do return values_cache.avg
 
-	redef fun std_dev: Float do return values_cache.std_dev
+	redef fun std_dev do return values_cache.std_dev
 
 	redef fun above_threshold do
 		var above = new HashSet[ELM]
@@ -276,7 +284,8 @@ class FloatMetric
 
 	redef fun clear do values_cache.clear
 
-	fun sum: Float do
+
+	redef fun sum do
 		var sum = 0.0
 		for v in values.values do sum += v
 		return sum
@@ -313,7 +322,7 @@ class FloatMetric
 		return sum / values.length.to_f
 	end
 
-	redef fun std_dev: Float do
+	redef fun std_dev do
 		var sum = 0.0
 		for value in values.values do
 			sum += (value - avg).pow(2.to_f)
@@ -338,7 +347,6 @@ class FloatMetric
 			print "{"\t" * indent}  sum: {sum}"
 		end
 	end
-
 end
 
 # A MetricSet is a metric holder
@@ -370,6 +378,8 @@ class MetricSet
 	fun to_csv: CsvDocument do
 		var csv = new CsvDocument
 
+		csv.format = new CsvFormat('"', ';', "\n")
+
 		# set csv headers
 		csv.header.add("entry")
 		for metric in metrics do csv.header.add(metric.name)