Basic Select Operation

Introduction

If we want only a subset of columns from the entire dataframe, then we make use of the select(..) function. Select operation has the following syntax:

select(<dataframe>, <columns>)

The operation of selecting columns does not modify the current input, instead it returns a new dataframe which is a result of the operation performed.

Procedure

We will be working with the nycflights13::flights dataframe. The first few rows are as follows: flights

We will select the year, month, and day columns from the flights dataframe.

Code

 
library(dplyr)
library(nycflights13)

# select the year, month, day column
View(select(flights, year, month, day))

The output of above code is:

basic_select

Conclusion

Thus we have successfully implemented basic selection of columns.

References

https://r4ds.had.co.nz/