Dear R Team
The following line returns 0 (zero) as answer:
sum(c(NA_real_, NA_real_, NA_real_, NA_real_), na.rm = TRUE)
One would, however, have expected it to return 'NaN', as is the case with
function 'mean':
> mean(c(NA_real_, NA_real_, NA_real_, NA_real_), na.rm = TRUE)
[1] NaN
The problem
On 11/01/2017 5:33 AM, Alex Ivan Howard wrote:
Dear R Team
The following line returns 0 (zero) as answer:
sum(c(NA_real_, NA_real_, NA_real_, NA_real_), na.rm = TRUE)
One would, however, have expected it to return 'NaN', as is the case with
function 'mean':
mean(c(NA_real_, NA_real_, NA_real_
> Do you have R code (including set.seed(.) if relevant) to show on how to
> generate
> the large square matrices you've mentioned in the beginning? So we get to
> some
> reproducible benchmarks?
Hi Martin,
Here is the program I used. I only generate 2 random numbers and reuse them to
make t
Works for me:
> strptime("17_35_14.01234.mp3","%H_%M_%OS")$sec
[1] 14.01234
> strptime("17_35_14.mp3","%H_%M_%OS")$sec
[1] 14
Just leave off the ".mp3" in your time pattern.
Relevant section from the help ("Details") for strptime:
strptime converts character vectors to class "POSIXlt": its input
