myui commented on a change in pull request #178: [HIVEMALL-233] RandomForest
regressor accepts sparse vector input
URL: https://github.com/apache/incubator-hivemall/pull/178#discussion_r249087536
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File path:
core/src/main/java/hivemall/utils/collections/lists/DoubleArrayList.java
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@@ -70,7 +70,7 @@ public DoubleArrayList add(@Nonnull double[] values) {
private void expand(int max) {
while (data.length < max) {
final int len = data.length;
- double[] newArray = new double[len * 2];
+ double[] newArray = new double[(len + 1) * 2];
Review comment:
why this change has been made?
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