Re: [Rd] sum() returns NA on a long *logical* vector when nb of TRUE values exceeds 2^31

> Martin Maechler > on Thu, 1 Feb 2018 16:34:04 +0100 writes: > > Hervé Pagès > > on Tue, 30 Jan 2018 13:30:18 -0800 writes: > > > Hi Martin, Henrik, > > Thanks for the follow up. > > > @Martin: I vote for

Re: [Rd] sum() returns NA on a long *logical* vector when nb of TRUE values exceeds 2^31

> Hervé Pagès > on Tue, 30 Jan 2018 13:30:18 -0800 writes: > Hi Martin, Henrik, > Thanks for the follow up. > @Martin: I vote for 2) without *any* hesitation :-) > (and uniformity could be restored at some point in the > future by having

Re: [Rd] sum() returns NA on a long *logical* vector when nb of TRUE values exceeds 2^31

Hi Martin, Henrik, Thanks for the follow up. @Martin: I vote for 2) without *any* hesitation :-) (and uniformity could be restored at some point in the future by having prod(), rowSums(), colSums(), and others align with the behavior of length() and sum()) Cheers, H. On 01/27/2018 03:06 AM,

Re: [Rd] sum() returns NA on a long *logical* vector when nb of TRUE values exceeds 2^31

> Henrik Bengtsson > on Thu, 25 Jan 2018 09:30:42 -0800 writes: > Just following up on this old thread since matrixStats 0.53.0 is now > out, which supports this use case: >> x <- rep(TRUE, times = 2^31) >> y <- sum(x) >> y > [1]

Re: [Rd] sum() returns NA on a long *logical* vector when nb of TRUE values exceeds 2^31

Just following up on this old thread since matrixStats 0.53.0 is now out, which supports this use case: > x <- rep(TRUE, times = 2^31) > y <- sum(x) > y [1] NA Warning message: In sum(x) : integer overflow - use sum(as.numeric(.)) > y <- matrixStats::sum2(x, mode = "double") > y [1] 2147483648

Re: [Rd] sum() returns NA on a long *logical* vector when nb of TRUE values exceeds 2^31

Hi Martin, On 06/07/2017 03:54 AM, Martin Maechler wrote: Martin Maechler on Tue, 6 Jun 2017 09:45:44 +0200 writes: Hervé Pagès on Fri, 2 Jun 2017 04:05:15 -0700 writes: >> Hi, I have a long numeric vector 'xx' and I want

Re: [Rd] sum() returns NA on a long *logical* vector when nb of TRUE values exceeds 2^31

> Martin Maechler > on Tue, 6 Jun 2017 09:45:44 +0200 writes: > Hervé Pagès > on Fri, 2 Jun 2017 04:05:15 -0700 writes: >> Hi, I have a long numeric vector 'xx' and I want to use >> sum() to count the number of

Re: [Rd] sum() returns NA on a long *logical* vector when nb of TRUE values exceeds 2^31

I second this feature request (it's understandable that this and possibly other parts of the code was left behind / forgotten after the introduction of long vector). I think mean() avoids full copies, so in the meanwhile, you can work around this limitation using: countTRUE <- function(x, na.rm

[Rd] sum() returns NA on a long *logical* vector when nb of TRUE values exceeds 2^31

Hi, I have a long numeric vector 'xx' and I want to use sum() to count the number of elements that satisfy some criteria like non-zero values or values lower than a certain threshold etc... The problem is: sum() returns an NA (with a warning) if the count is greater than 2^31. For example: >