iterate verb about tidygraph HOT 7 CLOSED

Maybe this is more general than tidygraph - thoughts @hadley ?

from tidygraph.

What does iterate() do?

from tidygraph.

The goal of iterate is to modify the passed in tibble a number of times eg

diamonds %>%
  iterate(mean(price) > 200, ~sample_frac(., 0.8))

To iteratively remove 20% of the rows until the mean price is above 200.

This especially makes sense with networks but I thought it might generalise nicely to provide a sort of tidy while/for loop

from tidygraph.

Like this?

iterate <- function(x, n, f) {
  for (i in seq_len(n)) {
    x <- f(x)
  }
  x
}

?

from tidygraph.

Yeah - my phone typing submitted prematurely - I’ve updated the comment but your idea is right

from tidygraph.

Maybe have both an iterate_while and iterate_n

from tidygraph.

Any interest in this @hadley? Otherwise I'll just develop it in the context of tidygraph and you can jump in on a later stage...

from tidygraph.