How do I select a column in R Dplyr?
Keeping this in consideration, how do I select a column in R?
Select Data Frame Columns in R
- pull(): Extract column values as a vector.
- select(): Extract one or multiple columns as a data table.
- select_if(): Select columns based on a particular condition.
- Helper functions - starts_with(), ends_with(), contains(), matches(), one_of(): Select columns/variables based on their names.
Secondly, what package is select R? Select function in R is used to select variables (columns) in R using Dplyr package. Dplyr package in R is provided with select() function which select the columns based on conditions.
In this way, how do I select a subset of data in R?
So, to recap, here are 5 ways we can subset a data frame in R:
- Subset using brackets by extracting the rows and columns we want.
- Subset using brackets by omitting the rows and columns we don't want.
- Subset using brackets in combination with the which() function and the %in% operator.
- Subset using the subset() function.
How do I select a column in a data frame?
Summary of just the indexing operator
- Its primary purpose is to select columns by the column names.
- Select a single column as a Series by passing the column name directly to it: df['col_name']
- Select multiple columns as a DataFrame by passing a list to it: df[['col_name1', 'col_name2']]