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update installation doc

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CodingCat 2016-03-19 08:15:56 -04:00
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doc/jvm/index.md
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@ -9,7 +9,9 @@ Installation
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Currently, XGBoost4J only support installation from source. Building XGBoost4J using Maven requires Maven 3 or newer and Java 7+.
To install XGBoost4J, it is as simple as run `mvn package` under jvm-packages.
Before you install XGBoost4J, you need to define environment variable `JAVA_HOME` as your JDK directory to ensure that your compiler can find `jni.h` correctly, since XGBoost4J relies on JNI to implement the interaction between the JVM and native libraries.
After your `JAVA_HOME` is defined correctly, it is as simple as run `mvn package` under jvm-packages directory to install XGBoost4J.
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