ISO Code for Namibia ('NA')

z <- tibble(Code=c("NA","NZ",NA), Name=c("Namibia","New Zealand","?"))
z

# A tibble: 3 x 2
   Code  Name
   <chr> <chr>
1 NA    Namibia
2 NZ    New Zealand
3 <NA>  ?

subset(z, Code=="NA")

# A tibble: 1 x 2
   Code  Name
   <chr> <chr>
1 NA    Namibia

subset(z, is.na(Code))

# A tibble: 1 x 2
   Code  Name
   <chr> <chr>
1 <NA>  ?

subset(z, Code==NA_character_)

# A tibble: 0 x 2
# ... with 2 variables: Code <chr>, Name <chr>

On Wed, Sep 1, 2021 at 3:33 PM Dr Eberhard Lisse <nospam at lisse.na> wrote:

Hi,

how can I look for the ISO code for Namibia 'NA' in a list of ISO codes
which looks something like

         # A tibble: 10 ? 1
            location_code
            <chr>
          1 NC
[...]
         10 NZ

but should look like

         # A tibble: 10 ? 1
            location_code
            <chr>
          1 NA
          2 NC
[...]
         11 NZ

In other words 'NA' is taken for the missing value NA.

greetings, el

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