implicit_assignment

What it does

Checks for implicit assignment in function calls and other situations.

Assigning inside function calls or other situations such as in if() makes the code difficult to read, and should be avoided.

mean(x <- c(1, 2, 3))
x

if (any(y <- x > 0)) {
  print(y)
}

Use instead:

x <- c(1, 2, 3)
mean(x)
x

larger <- x > 0
if (any(larger)) {
  print(larger)
}

See: