In Order to get day of month from date in R we will be using Format() function. Let’s see how to get day of month from date in R with an example.
Let’s first create the dataframe.
### Create Data Frame df1 = data.frame ( Name =c('Annie','Catherine','Teresa','Peterson','Richard','joe'), Date_of_birth = as.Date(c('1995-06-16','1991-04-19','1993-07-22','1990-03-26','1991-05-12','1992-09-13'))) df1
dataframe df1 will be
Get day of month from date in R
Day of Month is extracted from Date_of_birth column using Format() functions as shown below.
df1$day_of_month <- as.numeric(format(df1$Date_of_birth,'%d')) df1
So the resultant data frame has a column day_of_month with day of month extracted from date.