search for: l425

...newtype>(.) (or coerceVector() in C). So I tracked down the source (which admittedly has been this way for much longer than the present discussion) to see what exactly c() is doing in this case: https://github.com/r-devel/r-svn/blob/71e7480b07767f3b7d5c45a4247959aa4d83d910/src/main/bind.c#L418-L425 And indeed! It's not "coercion" in the sense I just described... there's a branch for the 'x == NA_LOGICAL' case to _convert_ to NA_complex_. On Mon, Nov 6, 2023 at 3:08?AM Martin Maechler <maechler at stat.math.ethz.ch> wrote: > >>>>> Michael Ch...

...acked down the source (which admittedly has been this way for much > > longer than the present discussion) to see what exactly c() is doing in > > this case: > > >https://github.com/r-devel/r-svn/blob/71e7480b07767f3b7d5c45a4247959aa4d83d910/src/main/bind.c#L418-L425 > > > And indeed! It's not "coercion" in the sense I just described... there's a > > branch for the 'x == NA_LOGICAL' case to_convert_ to NA_complex_. > > Yes; "of course" ... still, I did not answer your main question, > as y...

...urce (which admittedly has been this way for much >> > longer than the present discussion) to see what exactly c() is doing in >> > this case: >> >> >https://github.com/r-devel/r-svn/blob/71e7480b07767f3b7d5c45a4247959aa4d83d910/src/main/bind.c#L418-L425 >> >> > And indeed! It's not "coercion" in the sense I just described... there's a >> > branch for the 'x == NA_LOGICAL' case to_convert_ to NA_complex_. >> >> Yes; "of course" ... still, I did not answer...

>>>>> Michael Chirico >>>>> on Sun, 5 Nov 2023 09:41:42 -0800 writes: > This is another follow-up to the thread from September > "Recent changes to as.complex(NA_real_)". > A test in data.table was broken by the changes for NA > coercion to complex; the breakage essentially comes from > c(NA, 0+1i) > # vs