Sometime last year, I got fascinated with bubble charts when I saw a data visualization video, Han's Rosling's 200 Countries, 200 Years, 4 Minutes - The Joy of Stats from BBC.

### What are bubble charts?

"A bubble chart is a type of chart that displays three dimensions of data. Each entity with its triplet of associated data is plotted as a disk that expresses two of the values through the disk's xy location and the third through its size." Wikipedia

Last January 2019, I was checking Tableau Desktop, a data visualization software, and their basic tutorials included a heat map of the United States.

### What are heat maps?

"A heat map is a graphical representation of data where the individual values contained in a matrix are represented as colors. "Heat map" is a newer term but shading matrices have existed for over a century."Wikipedia

While going through the Tableau tutorial, I remembered the bubble charts and started looking for an inspiration. I was googling for image silhouettes and got the result below:

This led to my short data visualization experiment. I looked for a dataset and found NBA Injuries from 2010-2018, on Kaggle . I modified the dataset to make it simple to use.

I ended up giving up on using Tableau and creating my own data visualization in Microsoft Powerpoint. Still, my friends were amazed and thought that I used a data visualization tool.

Fast track to August 2019, I returned to studying the Tableu tutorial. Just look at the result below! =)

## How did I do it?

I used Excel, Tableu, and a little bit of creativity.

Feel free to follow along and create the same dataset and visualization.

Steps

1. Create an Excel file. Column B and Column C will serve as the location on the X-axis and Y-axis of an item in Tableau. Count represents how many players had a particular injury from 2010 to 2018.

3. Open the Tableau Desktop App

4. Click Connect To a File >  Microsoft Excel

4. Drag a Sheet from the left pane to the right pane

5. At the bottom, click the Sheet.

6. At the menu, click Background Images > Sheet