Hi Lukas,
thanks for the report. I've changed cumsum so that it is now consistent
with cumprod wrt to NA/NaN propagation.
Now NaN is not turned into NA unnecessarily.
Still please be aware that generally NaNs may become NAs in R (on some
platforms/compilers)
?NaN says
"Computations
Hi!
I noticed that cumsum behaves different than the other cumulative functions
wrt. NaN values:
> values <- c(1,2,NaN,1)
> for ( f in c(cumsum, cumprod, cummin, cummax)) print(f(values))
[1] 1 3 NA NA
[1] 1 2 NaN NaN
[1] 1 1 NaN NaN
[1] 1 2 NaN NaN
The reason is that cumsum (in
