Combine these 3 charts
![](https://www.thedataschool.co.uk/content/images/2022/07/image-312.png)
Into one
![](https://www.thedataschool.co.uk/content/images/2022/07/Dynamic-date-level-tableau-1.gif)
Follow along in this tutorial to see how this chart is built. Find (1.4) for a more detailed explanation on the datetrunc function.
![](https://www.thedataschool.co.uk/content/images/2022/07/Dynamic-date-level-tableau-Walkthrough.gif)
Step by step instruction.
- Firstly you must create the parameter that will contain the values to be entered within the datetrunc function
2. - Enter this into the truncating calculated field
4. - Then drag into the columns the calcualted field just made and show the paramter
6.