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Changing column data types
Basic data cleaning
7. Change a column name
Summary

Instruction

Our new columns' names do not match the others in the data set. It's best to use consistent column names, so we will change the new names a bit. Let's start by changing EmailName to email_name. We will use the colnames() function. This function returns a vector of names of columns in a data frame, have a look:

colnames(survey)[5] <- c("email_name")

The colnames() function takes a data set as its argument. We use the square brackets notation to access the 5th element (the EmailName column). Finally, we assign it a vector with the new column name.

Exercise

Change the name of the column FirstName (position 1) to first_name. The data set is survey.