preface.md

Preface

The main part of the preface still needs to be done. I just wanted to add this conventions section.

Conventions.

Much of the interaction you will have with PredictionIO is you typing commands in a terminal window.

If you are not fluent in using the command line, in typed pwd, which stands for print working directory and the system printed my current directory /Users/raz. Next I changed my curent directory to tmp by typing cd tmp. Finally, I listed the contents of that directory by typing ls. Throughout this book, this terminal interaction will be indicated by in a separate block of text and the commands we type in are prefaced by ~$. So the above interaction would be indicated by:

~$ pwd
/Users/raz
~$ cd tmp
~$ ls
f.zip

Any commands and other code related phrases within running text are indicated as shown here for /Users/tmp and cd tmp.

Periodically, I will ask you, the reader, a question. Often these will be set off from the main text as shown:

####You try Can you query our recommender to get the predicted values for Jordyn and fill in the following table?