anchor.diff:  
   ### Download PredictionIO
   
  -Simply download PredictionIO's binary distribution and extract it.
  +Download PredictionIO and extract it.
  +
   ```
   $ wget https://d8k1yxp8elc6b.cloudfront.net/PredictionIO-<%= data.versions.pio %>.tar.gz
   $ tar zxvf PredictionIO-<%= data.versions.pio %>.tar.gz
  
positive.code: 
  #### Elasticsearch Setup
  
  By default, PredictionIO uses Elasticsearch at localhost as the data store to
  store its metadata. Download [Elasticsearch](http://www.elasticsearch.org/).
  Extract the file, and set the `PIO_STORAGE_SOURCES_ELASTICSEARCH_HOME` configuration
  in `PredictionIO-<%= data.versions.pio %>/conf/pio-env.sh`.
  ```
  $ wget https://download.elasticsearch.org/elasticsearch/elasticsearch/<%= data.versions.elasticsearch_download_filename %>.tar.gz
  $ tar zxvf <%= data.versions.elasticsearch_download_filename %>.tar.gz
  ```
  
  After that, edit `PredictionIO-<%= data.versions.pio %>/conf/pio-env.sh`.
  ```
  PIO_STORAGE_SOURCES_ELASTICSEARCH_HOME=/home/abc/<%= data.versions.elasticsearch_download_filename %>
  ```
  
  If you are using a shared network, change the `network.host` line in
  `config/elasticsearch.yml` to `network.host: 127.0.0.1` because by default,
  Elasticsearch looks for other machines on the network upon setup and you may run
  into weird errors if there are other machines that is also running
  Elasticsearch.
  If you are not using the default setting at localhost. You may change the
  following in `PredictionIO-<%= data.versions.pio %>/conf/pio-env.sh` to fit your setup.
  ```
  PIO_STORAGE_SOURCES_ELASTICSEARCH_TYPE=elasticsearch
  PIO_STORAGE_SOURCES_ELASTICSEARCH_HOSTS=localhost
  
negative.code: 
  #### HBase Setup<a class="anchor" name="hbase">&nbsp;</a>
  
  [HBase](http://hbase.apache.org) is the default event data store for PredictionIO.<br />
  Download and extract it.
  
  ```
  $ wget http://archive.apache.org/dist/hbase/<%= data.versions.hbase_basename %>/<%= data.versions.hbase_basename %>-<%= data.versions.hbase_variant %>.tar.gz
  $ tar zxvf <%= data.versions.hbase_basename %>-<%= data.versions.hbase_variant %>.tar.gz
  ```
  
  After that, edit `PredictionIO-<%= data.versions.pio %>/conf/pio-env.sh`.
  
  ```
  PIO_STORAGE_SOURCES_HBASE_HOME=/home/abc/<%= data.versions.hbase_basename %>-<%= data.versions.hbase_variant %>
  ```
  