* function to improve the data to plot
* added more user messages
* changed view to be able to return data - so the request is not repeated
* moved ax1.lengend up
* removes nan values from dataframe
* fixed tests on the economy controller
* fixes economy notebook
* removed unsuded Dict
* function does not return anything by default
* function does not return anything by default
* Revert "function does not return anything by default"
This reverts commit 8aca895a5e.
* function does not return anything by default
* removed wrong return type
* lint