I also have this questions for this. I wonder if R initiates a system
environment or options to instruct the packages on the number of cores to use?
It doesn't have to be mandatory for now, but at least package maintainers can
have shared consensus and start to adopt this humble settings rather
>
> We have one in vctrs but it's not exported:
> https://github.com/r-lib/vctrs/blob/main/src/hash.c
>
> The main use is vectorised hashing:
>
Thanks for showing me this function. I have read the source code. That's a
great idea.
However, I think I might have missed something. When I trie
` but that package uses `serialize`
(see discussion
https://github.com/eddelbuettel/digest/issues/200#issuecomment-1894289875)
> On Jan 12, 2024, at 11:33 AM, Tomas Kalibera wrote:
>
>
> On 1/12/24 06:11, Dipterix Wang wrote:
>> Dear R devs,
>>
>> I was digging i
Dear R devs,
I was digging into a package issue today when I realized R serialize function
not always generate the same results on equivalent objects when users choose to
run differently. For example, the following code
serialize(with(new.env(), { function(){} }), NULL, TRUE)
generates differe
Dear R devs,
I installed the recent devel R to test a package error when I intercept this
warning when loading packages:
```
Warning in .make_numeric_version(x, strict,
.standard_regexps()$valid_numeric_version) :
invalid non-character version specification 'x' (type: double)
```
After a lon
Thanks!
I think Sys.readlink resolved my issue. Indeed I found a permission issue. I
will post my questions to r-help next time.
Best,
Dipterix
> On Jun 26, 2023, at 11:17 AM, Serguei Sokol wrote:
>
> Le 26/06/2023 à 16:26, Dipterix Wang a écrit :
>> I hope I'm not aski
I hope I'm not asking a stupid question... If I symlink a directory, is symlink
considered as directory in R? If so, why `dir.exists` returns FALSE on
directory?
I understand symlink is essentially a file, but functionally a symlink to
directory is no different to the directory itself, but a di
Dear R Core devs,
I wonder if it makes sense to make function file.rename return invisible? This
is not a big issue, but when running in RMarkdown or knitr, this function will
print results. I have to manually call invisible to hide the output from
showing in the final document:
```r
invisible
me. Do you mean a 'delayed' component of a list should be considered
> garbage if not 'immediately' extracted from a list? Could you show a few
> usage cases?
>
> -Bill
>
> On Fri, Oct 28, 2022 at 7:41 PM Dipterix Wang <mailto:dipterix.w...@gmail.
> This is not quite true. The value, even when invisible, is captured by
> .Last.value, and
>
> > f <- function() invisible(5)
> > f()
> > .Last.value
> [1] 5
I understand .Last.value will capture the function returns, but that only
happens in the top-level... I guess?
In the followings co
Hi,
I was wondering if it is a good idea to delay the evaluation of expression
within invisible(), just like data()/delayedAssign()?
The idea is a function might return an invisible object. This object might not
be used by the users if the function returns are not assigned nor passed to
anothe
Dear R wizards,
I recently received an email from Prof. Ripley. He pointed out that my package
seriously violates the CRAN policy: "using 8 threads is a serious violation of
the CRAN policy”. By default the number of cores my package uses is determined
from system CPU cores. After carefully rea
) when a longjmp is triggered. Non-memory resources (e.g. a socket)
> returned to R should use the R_MakeExternalPtr() mechanism to make sure that,
> when the memory is freed by the garbage collector, the resource is also freed.
>
> "Writing R extensions" con
often confused about when to PROTECT and when not.
>>>> ... but then ravetools is not even a CRAN package, so why should you dare
>>>> to use it for anything serious ?
Haha, thanks : ) I guess I will probably be grouchy too if seeing so many
people making the same mist
Dear R-devel Team,
I'm developing a neuroscience signal pipeline package in R
(https://github.com/dipterix/ravetools) and I noticed a weird issue that failed
my unit test.
Basically I was trying to use `fftw3` library to implement fast multivariate
fft function in C++. When I tried to compare
Thank you,
I guess I should convert double to uint64_t instead of int64_t...
The reason why I asked is because bit64 package `bit64::as.integer64(2^63)`
produces different results on my machine vs. another server. This package
converts double to int64_t directly. Looks like this is a bug in the
Hi,
I was trying to convert REALSXP to int64_t in C, then found that converting
2^63 is inconsistent across platforms:
On M1 ARM osx, 2^63 (double) bit converting to `int64_t` becomes
9223372036854775807
On x86_64 ubuntu server, 2^63 (double) bit converting to `int64_t` is
-92233720368547758
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