Nothing
scale_ratio <- function(...) {
.Defunct(msg = "Abandoned since 1.5 to avoid possible confusion. Previous manifestoR versions contained ambiguous information on what it would actually calculate. Now split into `scale_ratio_1` (Kim/Fording, Laver/Garry) and `scale_ratio_2` implementing two different approaches that both could be somewhat considered 'ratio' scales")
}
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