commit 33d1552f0140d207ba5ce5eab3eb7ec9b743ef28
author Gilles Sadowski <gilles@harfang.homelinux.org> Sat Jan 27 14:40:25 2018 +0100
committer Gilles Sadowski <gilles@harfang.homelinux.org> Sat Jan 27 14:40:25 2018 +0100
tree df98afbc39498dd18ed03fcdf9314b2c4b1e5d7b
parent 3eb53ba1748e680cdb94f515347ab3b762a59866

Unnecessary method calls.

commons-statistics-distribution/src/main/java/org/apache/commons/statistics/distribution/TDistribution.java

diff --git a/commons-statistics-distribution/src/main/java/org/apache/commons/statistics/distribution/TDistribution.java b/commons-statistics-distribution/src/main/java/org/apache/commons/statistics/distribution/TDistribution.java
index 07b1fc6..7177308 100644
--- a/commons-statistics-distribution/src/main/java/org/apache/commons/statistics/distribution/TDistribution.java
+++ b/commons-statistics-distribution/src/main/java/org/apache/commons/statistics/distribution/TDistribution.java
@@ -103,9 +103,7 @@
      */
     @Override
     public double getMean() {
-        final double df = getDegreesOfFreedom();
-
-        if (df > 1) {
+        if (degreesOfFreedom > 1) {
             return 0;
         }
 
@@ -125,13 +123,12 @@
      */
     @Override
     public double getVariance() {
-        final double df = getDegreesOfFreedom();
-
-        if (df > 2) {
-            return df / (df - 2);
+        if (degreesOfFreedom > 2) {
+            return degreesOfFreedom / (degreesOfFreedom - 2);
         }
 
-        if (df > 1 && df <= 2) {
+        if (degreesOfFreedom > 1 &&
+            degreesOfFreedom <= 2) {
             return Double.POSITIVE_INFINITY;
         }