From 712b9ac7c72aeffdc395e084d6b5fea9ae57c0e6 Mon Sep 17 00:00:00 2001
From: B Sharma <BSharma@rccl.com>
Date: Sat, 6 Jun 2020 22:00:13 +0530
Subject: [PATCH] Revert one change

---
 .../commons/math4/stat/regression/SimpleRegression.java     | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/main/java/org/apache/commons/math4/stat/regression/SimpleRegression.java b/src/main/java/org/apache/commons/math4/stat/regression/SimpleRegression.java
index e93f75e853..50c9034da9 100644
--- a/src/main/java/org/apache/commons/math4/stat/regression/SimpleRegression.java
+++ b/src/main/java/org/apache/commons/math4/stat/regression/SimpleRegression.java
@@ -301,8 +301,8 @@ public void addObservations(final double[][] x,final double[] y) throws ModelSpe
                   (y == null) ? 0 : y.length);
         }
         boolean obsOk=true;
-        for( int i = 0 ; i < x.length; i++){
-            if( x[i] == null || x[i].length == 0 ){
+        for (double[] x1 : x) {
+            if (x1 == null || x1.length == 0) {
                 obsOk = false;
             }
         }
@@ -827,7 +827,7 @@ public RegressionResults regress(int[] variablesToInclude) throws MathIllegalArg
         if( variablesToInclude.length > 2 || (variablesToInclude.length > 1 && !hasIntercept) ){
             throw new ModelSpecificationException(
                     LocalizedFormats.ARRAY_SIZE_EXCEEDS_MAX_VARIABLES,
-                    !hasIntercept ? 1 : 2);
+                    (variablesToInclude.length > 1 && !hasIntercept) ? 1 : 2);
         }
 
         if( hasIntercept ){