It seems that since recently mutate case_when() calls are more strictly evaluated with regard to the variable type (or it always was as strict and some other R or package update, now produces integer instead of double values).
That's fine, but I think, ideally the error message would be more informative than 'names' attribute [1] must be the same length as the vector [0], especially for this borderline case where (depending on the data) the same code might produce either integers or doubles.
library(dplyr) #> #> Attache Paket: 'dplyr' #> Die folgenden Objekte sind maskiert von 'package:stats': #> #> filter, lag #> Die folgenden Objekte sind maskiert von 'package:base': #> #> intersect, setdiff, setequal, union library(magrittr) tibble(a = c("yes", "no"), b = as.integer(c(0,2))) %>% mutate(b = case_when(a == "yes" ~ NA_real_, TRUE ~ b)) #> Error in `mutate()`: #> ! Problem while computing `b = case_when(a == "yes" ~ NA_real_, TRUE ~ #> b)`. #> Caused by error in `names(message) <- `*vtmp*``: #> ! Attribut 'names' [1] muss dieselbe Länge haben wie der Vektor [0]
Created on 2022-03-04 by the reprex package (v2.0.1)
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