PHP

Statistical View of Data in a Clustered Bar Chart

Statistical view of data in the shape of a clustered bar chart is somewhat similar to having to select between two attributes of a single entity. However, a real-life case scenario is far more complicated. As in most cases, the situation has a lot of entities strongly related with each other through E-R diagrams obeying the normalization rules. Moreover, in such cases, data is not only two-dimensional but, rather, it may be multi-dimensional.

Let_s look at the following E-R diagram from which we have to present a statistical view (in the form of a clustered bar chart). How can we do this? This article is an attempt to explain the solution.

Prerequisites

You should have Apache web server with PHP and MySQL running.  A fair amount of knowledge in PHP is also required. I have provided a zip archive of a demo along with this article.