If you need to switch between two completely different visualization with different number of measures, dimensions ,filters or chart types like a map or bar in the same space on your dashboard you can use containers along with parameter.
Lets look at an example
We have a Bar chart and a Map. I need to switch between them on my Dashboard in the same space.
Bar Chart
.
Map 
Create a parameter with Values as ‘Bar’ and ‘Map’ .

Create Calculated Field ‘Select_View’

Go to the sheet with Bar Chart. Show Parameter ‘Select View’. Select the value ‘Bar’.
Drag and drop the calculated field Select_View to the filter. Check the Value ‘Bar’

Go to the sheet with Map. Show Paramater and select value ‘Map’.Drag the calculated field ‘Select_View’ to filter and check the value ‘Map’.
Putting the Charts on Dashboard
Create a new Dashboard. Drag a vertical container into the dashboard. Drag both charts to the container.
Make sure the layout is like below.

The view on the dashboard when Bar is selected.

As You can see the title is not hidden when we select the different views. To remove the title. Click on the chart. Go to More options and untick the Title.

Do this for the Bar chart as well.
That’s it !! You can now switch between the views and it will show up on the same space on your dashboard.