Re: [R] Error in as.POSIXlt.character(x, tz, ...)
В Thu, 11 May 2023 17:51:33 +0800
Jinsong Zhao пишет:
> Both codes do not return NA on FreeBSD:
>
> > strptime("1970-01-01 00:00.00 UTC", "%Y-%m-%d %H:%M", '')
> [1] "1970-01-01 CST"
> > strptime("1970-01-01 00:00.00 UTC", "%Y-%m-%d", '')
> [1] "1970-01-01 CST"
I must have misread the code of as.POSIXlt.character then.
> I do not know how to use R's debugger...
In short, debugonce(as.POSIXlt.character) will prepare R to start the
debugger once the function is called. The debugger prompt is described
in ?browser; it's mostly like R's prompt (you can call print(variable)
and other, more complicated expressions), but there are special
commands like "n" (next statement), "s" (step inside the function call)
and so on.
Call:
debugonce(as.POSIXlt.character)
as.POSIXct("1970-01-01 00:00.00 UTC")
Use n to step over function calls and s to step inside for loops. See
what's returned by strptime() calls inside this function. It's raising
an exception because all of them contain NAs somewhere; which element is
NA? What are the exact arguments used to call strptime()?
This doesn't seem to be due to differences in locale: both CentOS and
FreeBSD use en_US.UTF-8.
--
Best regards,
Ivan
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Re: [R] Error in as.POSIXlt.character(x, tz, ...)
The origin of this problem is when I try to update rstan package in R
4.3.0 on FreeBSD. I get the same error as that
https://github.com/stan-dev/rstan/issues/612
However, I did not encounter this problem when using R 4.2.x or 4.1.x on
FreeBSD.
Best,
Jinsong
On 2023/5/11 16:56, Jinsong Zhao wrote:
Hi there,
When I run the following code in R 4.3.0 on FreeBSD, I got error.
> as.POSIXct("1970-01-01 00:00.00 UTC")
Error in as.POSIXlt.character(x, tz, ...) :
character string is not in a standard unambiguous format
The same code could give correct answer in R 4.3.0 on Windows, and R
4.1.2 on a old CentOS.
> as.POSIXct("1970-01-01 00:00.00 UTC")
[1] "1970-01-01 CST"
I confirmed that all the 3 OSes give the same time zone:
> Sys.timezone()
[1] "Asia/Shanghai"
What's wrong with the R on FreeBSD? Any hint? Thanks in advance.
Best,
Jinsong
__
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and provide commented, minimal, self-contained, reproducible code.
Re: [R] Error in as.POSIXlt.character(x, tz, ...)
On 2023/5/11 17:22, Ivan Krylov wrote:
В Thu, 11 May 2023 16:56:41 +0800
Jinsong Zhao пишет:
When I run the following code in R 4.3.0 on FreeBSD, I got error.
> as.POSIXct("1970-01-01 00:00.00 UTC")
Error in as.POSIXlt.character(x, tz, ...) :
character string is not in a standard unambiguous format
Do strptime("1970-01-01 00:00.00 UTC", "%Y-%m-%d %H:%M", '') and
strptime("1970-01-01 00:00.00 UTC", "%Y-%m-%d", '') both return NA for
you on FreeBSD? If not, can you trace the execution using R's debugger
to see which parts are returned as NA, failing the test in
as.POSIXlt.character?
Both codes do not return NA on FreeBSD:
> strptime("1970-01-01 00:00.00 UTC", "%Y-%m-%d %H:%M", '')
[1] "1970-01-01 CST"
> strptime("1970-01-01 00:00.00 UTC", "%Y-%m-%d", '')
[1] "1970-01-01 CST"
I do not know how to use R's debugger...
I think that strptime() should have discarded the trailing parts of the
string and matched at least the beginning (though not the ".00 UTC"
part because it doesn't correspond to the formats tried by strptime()).
Moreover, there shouldn't be significant difference between the
platforms, because R seems to always use an internal implementation of
strptime(). Are you using a multi-byte locale? (What's your
sessionInfo() on both a system where it works and the system where it
fails?)
The sessionInfo on FreeBSD said:
tzcode source: system (FreeBSD)
But on Windows it said:
tzcode source: internal
Could it be because of this?
The sessionInfo on FreeBSD is:
> sessionInfo()
R version 4.3.0 (2023-04-21)
Platform: amd64-portbld-freebsd13.1 (64-bit)
Running under: FreeBSD xw6600 13.2-RELEASE FreeBSD 13.2-RELEASE
releng/13.2-n254617-525ecfdad597 GENERIC amd64
Matrix products: default
LAPACK: /usr/local/lib/R/lib/libRlapack.so.4.3.0; LAPACK version 3.11.0
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
time zone: Asia/Shanghai
tzcode source: system (FreeBSD)
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] compiler_4.3.0
The sessionInfo on Windows is:
> sessionInfo()
R version 4.3.0 (2023-04-21 ucrt)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 11 x64 (build 22621)
Matrix products: default
locale:
[1] LC_COLLATE=Chinese (Simplified)_China.utf8
[2] LC_CTYPE=Chinese (Simplified)_China.utf8
[3] LC_MONETARY=Chinese (Simplified)_China.utf8
[4] LC_NUMERIC=C
[5] LC_TIME=Chinese (Simplified)_China.utf8
time zone: Asia/Shanghai
tzcode source: internal
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] compiler_4.3.0 tools_4.3.0
>
The sessionInfo on CentOS is:
> sessionInfo()
R version 4.1.2 (2021-11-01)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: CentOS Linux 7 (Core)
Matrix products: default
BLAS: /home/jszhao/software/lib64/R/lib/libRblas.so
LAPACK: /home/jszhao/software/lib64/R/lib/libRlapack.so
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C
[3] LC_TIME=en_US.UTF-8LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=en_US.UTF-8LC_MESSAGES=en_US.UTF-8
[7] LC_PAPER=en_US.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
loaded via a namespace (and not attached):
[1] compiler_4.1.2
>
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Re: [R] Error in as.POSIXlt.character(x, tz, ...)
On 2023/5/11 17:24, Jeff Newmiller wrote:
I find your claim suspect... a period is not interchangeable with a colon.
Good catching, but
In R 4.3.0 on FreeBSD, the same error after changing the period to a colon:
> as.POSIXct("1970-01-01 00:00:00 UTC")
Error in as.POSIXlt.character(x, tz, ...) :
character string is not in a standard unambiguous format
I copy the code from a web page. It works in R 4.3.0 on Windows and R
4.1.2 on an old CentOS.
Best,
Jinsong
On May 11, 2023 1:56:41 AM PDT, Jinsong Zhao wrote:
Hi there,
When I run the following code in R 4.3.0 on FreeBSD, I got error.
as.POSIXct("1970-01-01 00:00.00 UTC")
Error in as.POSIXlt.character(x, tz, ...) :
character string is not in a standard unambiguous format
The same code could give correct answer in R 4.3.0 on Windows, and R 4.1.2 on a
old CentOS.
as.POSIXct("1970-01-01 00:00.00 UTC")
[1] "1970-01-01 CST"
I confirmed that all the 3 OSes give the same time zone:
Sys.timezone()
[1] "Asia/Shanghai"
What's wrong with the R on FreeBSD? Any hint? Thanks in advance.
Best,
Jinsong
__
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and provide commented, minimal, self-contained, reproducible code.
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Re: [R] Error in as.POSIXlt.character(x, tz, ...)
I find your claim suspect... a period is not interchangeable with a colon.
On May 11, 2023 1:56:41 AM PDT, Jinsong Zhao wrote:
>Hi there,
>
>When I run the following code in R 4.3.0 on FreeBSD, I got error.
>
>> as.POSIXct("1970-01-01 00:00.00 UTC")
>Error in as.POSIXlt.character(x, tz, ...) :
> character string is not in a standard unambiguous format
>
>The same code could give correct answer in R 4.3.0 on Windows, and R 4.1.2 on
>a old CentOS.
>
>> as.POSIXct("1970-01-01 00:00.00 UTC")
>[1] "1970-01-01 CST"
>
>I confirmed that all the 3 OSes give the same time zone:
>> Sys.timezone()
>[1] "Asia/Shanghai"
>
>What's wrong with the R on FreeBSD? Any hint? Thanks in advance.
>
>Best,
>Jinsong
>
>__
>R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.
--
Sent from my phone. Please excuse my brevity.
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Re: [R] Error in as.POSIXlt.character(x, tz, ...)
В Thu, 11 May 2023 16:56:41 +0800
Jinsong Zhao пишет:
> When I run the following code in R 4.3.0 on FreeBSD, I got error.
>
> > as.POSIXct("1970-01-01 00:00.00 UTC")
> Error in as.POSIXlt.character(x, tz, ...) :
>character string is not in a standard unambiguous format
Do strptime("1970-01-01 00:00.00 UTC", "%Y-%m-%d %H:%M", '') and
strptime("1970-01-01 00:00.00 UTC", "%Y-%m-%d", '') both return NA for
you on FreeBSD? If not, can you trace the execution using R's debugger
to see which parts are returned as NA, failing the test in
as.POSIXlt.character?
I think that strptime() should have discarded the trailing parts of the
string and matched at least the beginning (though not the ".00 UTC"
part because it doesn't correspond to the formats tried by strptime()).
Moreover, there shouldn't be significant difference between the
platforms, because R seems to always use an internal implementation of
strptime(). Are you using a multi-byte locale? (What's your
sessionInfo() on both a system where it works and the system where it
fails?)
--
Best regards,
Ivan
__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
[R] Error in as.POSIXlt.character(x, tz, ...)
Hi there,
When I run the following code in R 4.3.0 on FreeBSD, I got error.
> as.POSIXct("1970-01-01 00:00.00 UTC")
Error in as.POSIXlt.character(x, tz, ...) :
character string is not in a standard unambiguous format
The same code could give correct answer in R 4.3.0 on Windows, and R
4.1.2 on a old CentOS.
> as.POSIXct("1970-01-01 00:00.00 UTC")
[1] "1970-01-01 CST"
I confirmed that all the 3 OSes give the same time zone:
> Sys.timezone()
[1] "Asia/Shanghai"
What's wrong with the R on FreeBSD? Any hint? Thanks in advance.
Best,
Jinsong
__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
