demo-is-na.md

library(tidyverse)
dat <- tibble(
  x = c(NA, NA, NaN, -Inf, Inf, -1, -0, 0, 1, 2), 
  x_NA = is.na(x), 
  # invert NA, convert to number
  x_NA_num = (!is.na(x))*1
)

dat
#> # A tibble: 10 × 3
#>        x x_NA  x_NA_num
#>    <dbl> <lgl>    <dbl>
#>  1    NA TRUE         0
#>  2    NA TRUE         0
#>  3   NaN TRUE         0
#>  4  -Inf FALSE        1
#>  5   Inf FALSE        1
#>  6    -1 FALSE        1
#>  7     0 FALSE        1
#>  8     0 FALSE        1
#>  9     1 FALSE        1
#> 10     2 FALSE        1

^{Created on 2025-07-08 with reprex v2.1.1}

Session info

sessioninfo::session_info()
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#>  date     2025-07-08
#>  pandoc   3.6.3 @ /Applications/Positron.app/Contents/Resources/app/quarto/bin/tools/aarch64/ (via rmarkdown)
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#> ──────────────────────────────────────────────────────────────────────────────

njtierney/demo-is-na.md