How to install Cangjie (Traditional Chinese) input for Ubuntu Mate 16.04 PowerPc

I found ibus-cangjie 2.4-1. Then I installed with:

sudo apt-get update
sudo apt-get install ibus-cangjie

And now it is working perfectly.

Install "Chinese (traditional)" using Language Support. That will install some language support, including a couple of additional packages related to fcitx input methods. With those installed it should work.

Edit:

I've now tried this myself on Ubuntu 16.04 (i386), and it proved to not be sufficient. The package fcitx-table-cangjie is installed as part of the language support for "Chinese (traditional)", but after a relogin no Cangjie item showed up in Text Entry.

Then I installed fcitx-table-cangjie3 manually, and at next login Cangjie3 was selectable. I could successfully generate Chinese characters using Cangjie3.

One important note: The "Keyboard input method system" in Language Support must be fcitx.