Installing the model involves doing some preliminaries, taking two installation steps, and then doing some clean-up:

• Preliminaries
• Step 1: Install/Update the Tax-Analyzer-Framework
• Step 2: Install/Update the ETI-Tax-Analyzer Model
• Clean-Up and Reminder

Preliminaries

Before taking the installation steps, create a new directory called ETI in your home directory. You can do this by opening an operating system command prompt window (by starting the cmd app on Windows, which should put you in your home directory). Make a note of the name of your home directory. Then enter the following command:
mkdir ETI
and then moving into that new directory using the
cd ETI
command. (Note that when entering a command, you need to press the Enter or Return key at the end in order to execute the command.) And finally, download the most recent ETI-Tax-Analyzer zip file and unzip it in the ETI directory. This zip file is encrypted (because it contains private data), so you will need a password from the model developers to unzip it. After doing this there will be a file whose name starts with etitaxanalyzer and ends with .whl.

Step 1. Install/Update the Tax-Analyzer-Framework

Do this by following these installation instructions.

Step 2. Install/Update the ETI-Tax-Analyzer Model

Execute the following commands in the ETI directory at the Anaconda Prompt (not in the Anaconda Navigator) if you are on Windows. On other operating systems, execute the following commands at the operating system command prompt.

• Activate the tafe environment by executing these two commands in the ETI directory:
  conda activate tafe
conda env update

• Create/update the etitaxanalyzer package on your computer by executing this command in the ETI directory:
  pip install --no-index --find-links=. etitaxanalyzer

To confirm that the etitaxanalyzer package was created/updated correctly, check that the command
etita --version
shows you the ETI-Tax-Analyzer version you downloaded. And check that the command
etita --test
generates a PASSED TEST message on the screen.

Clean-Up and Reminder

After taking the installation step(s), remove the ETI directory. The easiest way to do this is to use your operating system's graphical file management system to drag the ETI folder to the trash.

Remember that every time you want to use the model (by opening an Anaconda Prompt on Windows or an operating system command prompt on a non-Windows computer), you must activate the tafe environment by executing the
conda activate tafe
command.