[R] Create order of numbers based on a given vector

[syrvn]

Hello!

If I have a vector vec <- c(FALSE, FALSE, TRUE, FALSE, TRUE, TRUE, FALSE
FALSE)

I can I create the following order of numbers based on vector vec:

1, 2, 2, 3, 3, 3, 4, 5

Whenever there is a FALSE I increase the number (starting with 1).
Whenever there is a TRUE I set the same number as the previous FALSE has
been assigned to.


I would be happy for any input

Cheers,
Syrvn

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