Converting yearmon column to last date of the month in R

Question

I have a data frame (df) like the following:

Date        Arrivals

2014-07      100
2014-08      150
2014-09      200

I know that I can con

Answer 1

Here is a way to do it using the zoo package.

R code:

library(zoo)
df
#      Date Arrivals
# 1 2014-07      100
# 2 2014-08      150
# 3 2014-09      200

df$Date <- as.Date(as.yearmon(df$Date), frac = 1)

# output
#         Date Arrivals
# 1 2014-07-31      100
# 2 2014-08-31      150
# 3 2014-09-30      200