I have a function that takes as input a specific column name. I then want to grab the column of a data frame that corresponds to that name. The problem is if I have code like this:
New <- function(name) {
dataframe$name
}
then it looks for the column with the name "name" and not the name I input in the function. Is there any way to get around this?
Just to add my 5c. Two alternatives above behave differently when the column with the given name does not exist. This may be important for what you do.
dataframe[, name]
will return an error, while
dataframe[[name]]
will return NULL
As Tyler mentioned in a comment
New <- function(name) { dataframe[, name] }
or, alternatively,
New <- function(name) { dataframe[[name]] }
New <- function(name) { dataframe[, name] }