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Posted to jira@arrow.apache.org by "Ian Cook (Jira)" <ji...@apache.org> on 2021/09/17 19:03:00 UTC
[jira] [Updated] (ARROW-14028) [R] Cast of NaN to integer should
return NA_integer_
[ https://issues.apache.org/jira/browse/ARROW-14028?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ian Cook updated ARROW-14028:
-----------------------------
Description:
Casting double {{NaN}} to integer returns a sentinel value:
{code:r}
call_function("cast", Scalar$create(NaN), options = list(to_type = int32(), allow_float_truncate = TRUE))
#> Scalar
#> -2147483648
call_function("cast", Scalar$create(NaN), options = list(to_type = int64(), allow_float_truncate = TRUE))
#> Scalar
#> -9223372036854775808{code}
It would be nice if this would instead return {{NA_integer}}.
N.B. for some reason this doesn't reproduce in dplyr unless you round-trip it back to double:
{code:r}
> Table$create(x = NaN) %>% transmute(as.double(as.integer(x))) %>% pull(1)
#> [1] -2147483648{code}
was:
Casting double {{NaN}} to integer returns a sentinel value:
{code:r}
call_function("cast", Scalar$create(NaN), options = list(to_type = int32(), allow_float_truncate = TRUE))
#> Scalar
#> -2147483648
call_function("cast", Scalar$create(NaN), options = list(to_type = int64(), allow_float_truncate = TRUE))
#> Scalar
#> -9223372036854775808{code}
It would be nice if this would instead return {{NA_integer}}.
> [R] Cast of NaN to integer should return NA_integer_
> ----------------------------------------------------
>
> Key: ARROW-14028
> URL: https://issues.apache.org/jira/browse/ARROW-14028
> Project: Apache Arrow
> Issue Type: Improvement
> Components: R
> Reporter: Ian Cook
> Priority: Major
>
> Casting double {{NaN}} to integer returns a sentinel value:
> {code:r}
> call_function("cast", Scalar$create(NaN), options = list(to_type = int32(), allow_float_truncate = TRUE))
> #> Scalar
> #> -2147483648
> call_function("cast", Scalar$create(NaN), options = list(to_type = int64(), allow_float_truncate = TRUE))
> #> Scalar
> #> -9223372036854775808{code}
> It would be nice if this would instead return {{NA_integer}}.
> N.B. for some reason this doesn't reproduce in dplyr unless you round-trip it back to double:
> {code:r}
> > Table$create(x = NaN) %>% transmute(as.double(as.integer(x))) %>% pull(1)
> #> [1] -2147483648{code}
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