list2df

NoteAdded in 0.1.2

What it does

Checks for usage of do.call(cbind.data.frame, x).

Why is this bad?

The goal of do.call(cbind.data.frame, x) is to concatenate multiple lists elements of the same length into a data.frame. Since R 4.0.0, it is possible to do this with list2DF(x), which is more efficient and easier to read than do.call(cbind.data.frame, x).

This rule comes with a safe fix but is only enabled if the project explicitly uses R >= 4.0.0 (or if the argument --min-r-version is passed with a version >= 4.0.0).

Example

x <- list(a = 1:10, b = 11:20)
do.call(cbind.data.frame, x)

Use instead:

x <- list(a = 1:10, b = 11:20)
list2DF(x)

References

See ?list2DF