income_sti_correlation: Correlation between income and STI
In slausmeister/revolution: Analysis of COVID-19 Data in Germany

Description Usage Arguments Details Value Examples

This function calculates the correlation between average income and seven day incidence in all administrative regions of germany on a dayly basis.

1	income_sti_correlation(path, sheetnr)

`path`	Specifies the path to a giben excel sheet. If left empty the function defaults to the data provided by the pachage.
`sheetnr`	Specifies the sheet of the excel table, where the relevant data can be found. It only has to be specified, if custom data is used.

The funciton is based on data by Destatis aquired via https://www.statistikportal.de/de/vgrdl/ergebnisse-kreisebene/einkommen-kreise on the 12.8.2021. The user can load his own income data into the function, as described in the parameters.

The function returns a tibble carring a "date" column, and a "cor" column. The "cor" column describes the correlation for a given date.

income_sti_correlation()
income_sti_correlation("expl/path.xlsx", 11)

## Not run: income_sti_correlation(sheetnr=3)
## Not run: income_sti_correlation(path="custom/path/without/sheetnumber.xlsx")