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This sample demonstrates how a model is generated out of a data set using the Random Forest Regression algorithm. The sample uses a data set to generate a model, which is divided into two sets for training and testing.


Follow the steps below to set up the prerequisites before you start.

  1. Download WSO2 Machine Learner, and start the server. For information on setting up and running WSO2 ML, see Getting Started.
  2. Download and install jq (CLI JSON processor). For instructions, see jq Documentation.
  3. If you are using Mac OS X, download and install GNU stream editor (sed). For instructions, see GNU sed Documentation.

Executing the sample

Follow the steps below to execute the sample.

  1. Navigate to <ML_HOME>/samples/default/random-forest-regression/ directory using the CLI.

  2. Execute the following command to execute the sample: ./

Analyzing the output

You can view the summary of the built model using the ML UI as follows.

  1. Log in to the ML UI from your Web browser using admin/admin credentials and the following URL:  https://<ML_HOST>:<ML_PORT>/ml

  2. Click the Projects button as shown below.
    click Projects button

  3. Click MODELS button of the new analysis which you created by executing the sample as shown below.
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