'Need help to select multiple variable from dplyr::Groupby
Extract the daily COVID-19 confirmed cases for City1, City2, and City3 from all the cities. Normalize the daily COVID-19 confirmed cases for the three cities using their respective populations. The 2019 mid-year estimated population figures for City1, City2, and City3 are 100,000, 200,000, and 300,000 respectively.
'''
df <- read.csv ("coronavirus.csv", header = TRUE )
library(dplyr)
df %>%
group_by(City.name) %>%
summarise(Sum = sum(Daily.cases))
'''
Cant select multiple variables from dplyr::Groupby. Can anyone help me with the right code along with the second part of the question as I am not able to find solution as well.
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