I am writing (and still writing as of this article) a manual to assist me in teaching Tableau. One of the sections is Parameter. There are many examples and guidance provided by Tableau.
You may read/view the following articles/videos for the guide on parameter.
https://interworks.com/blog/interworks/2012/03/26/how-to-create-and-use-parameters-in-tableau
https://help.tableau.com/current/pro/desktop/en-us/parameters_create.htm
https://help.tableau.com/current/pro/desktop/en-us/changing-views-using-parameters.htm
https://www.youtube.com/watch?v=CrfEJ24FWpQ
https://www.youtube.com/watch?v=rJsaezoTVAE
https://www.youtube.com/watch?v=opfVV1maNVw
The...