replace Double[] by double[] in getRangeDistribution

src/main/java/species/DiadromousFishGroup.java

@@ -489,7 +489,7 @@ public class DiadromousFishGroup extends AquaNismsGroup<DiadromousFish, RIOBasin
 		Scanner scanner;
 
 		obs1900 = new HashMap<String, Integer>();
-		if (fileNameInputForInitialObservation.isEmpty()) {
+		if (!fileNameInputForInitialObservation.isEmpty()) {
 			try {
 				reader = new FileReader(fileNameInputForInitialObservation);
 				// Parsing the file
@@ -908,7 +908,7 @@ public class DiadromousFishGroup extends AquaNismsGroup<DiadromousFish, RIOBasin
 
 
 	@Observable(description = "Range distribution")
-	public Double[] getRangeDistribution() {
+	public double[] getRangeDistribution() {
 		double southernBasin = 0;
 		double nbBasin = getEnvironment().getNbRiverBasin();
 		double northernBasin = nbBasin;
@@ -930,7 +930,7 @@ public class DiadromousFishGroup extends AquaNismsGroup<DiadromousFish, RIOBasin
 		}
 		southernBasin = nbBasin - southernBasin;
 		northernBasin = nbBasin - northernBasin;
-		Double[] rangeDistribution = new Double[3];
+		double[] rangeDistribution = new double[3];
 		rangeDistribution[0] = (latitudeEffective.isEmpty() ? (southernBasin + northernBasin) / 2.
 				: nbBasin - latitudeEffective.calculateMedian());
 		rangeDistribution[1] = Math.min(southernBasin, northernBasin);