I’ll absoultely check it out! If you have R-studio give this a try, it seems to work fine on my end!
covid <- read.csv("https://pages.uoregon.edu/dlevin/DATA/Covid.csv")
covid$cdt <- as.Date(covid$dateRep,format = "%d/%m/%Y")
covid_cntr <- group_split(covid,geoId)
covid_usa <- covid_cntr[[3]]
fit_usa <- lm(log(deaths)~cdt, data=subset(covid_usa, deaths>0))