Struct CollectNA 

pub struct CollectNA<I>(pub I);

Write an ExactSizeIterator of Option<T> directly into an R vector with NA support.

None values become NA in R. Works for f64 and i32.

Example

#[miniextendr]
fn with_gaps(n: i32) -> CollectNA<impl ExactSizeIterator<Item = Option<f64>>> {
    CollectNA((0..n).map(|i| if i % 3 == 0 { None } else { Some(i as f64) }))
}

Tuple Fields

0: I

Trait Implementations

impl<I> IntoR for CollectNA<I>

where I: ExactSizeIterator<Item = Option<f64>>,

type Error = Infallible

The error type for fallible conversions.

fn try_into_sexp(self) -> Result<SEXP, Self::Error>

Try to convert this value to an R SEXP.

unsafe fn try_into_sexp_unchecked(self) -> Result<SEXP, Self::Error>

Try to convert to SEXP without thread safety checks.

fn into_sexp(self) -> SEXP

Convert this value to an R SEXP, panicking on error.

unsafe fn into_sexp_unchecked(self) -> SEXP

Convert to SEXP without thread safety checks, panicking on error.