Displaying 9 results from an estimated 9 matches for "grundlingh".
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wgrundlingh
2018 Jun 08
2
Date class shows Inf as NA; this confuses the use of is.na()
Indeed. as_date is from lubridate, but the same holds for as.Date.
The output and it's interpretation should be consistent, otherwise it leads
to confusion when programming. I understand that the difference exists
after asking a question on Stack Overflow:
https://stackoverflow.com/q/50766089/914686
This understanding is never mentioned in the documentation - that an Inf
date is actually
2018 Jun 11
2
Date class shows Inf as NA; this confuses the use of is.na()
...lications in other areas, there is a
> > possibility of breaking code and it should be investigated a bit
> further
> > imho.
> > Cheers
> > Joris
> >
> >
> >
> >
> > On Fri, Jun 8, 2018 at 11:21 PM, Werner Grundlingh <
> wgrundlingh at gmail.com>
> > wrote:
> >
> >> Indeed. as_date is from lubridate, but the same holds for as.Date.
> >>
> >> The output and it's interpretation should be consistent, otherwise
> it
> >> leads
&...
2018 Jun 09
4
Date class shows Inf as NA; this confuses the use of is.na()
..."correct" date for an infinite value,
> but given that this will have implications in other areas, there is a
> possibility of breaking code and it should be investigated a bit further
> imho.
> Cheers
> Joris
>
>
>
>
> On Fri, Jun 8, 2018 at 11:21 PM, Werner Grundlingh <wgrundlingh at gmail.com>
> wrote:
>
>> Indeed. as_date is from lubridate, but the same holds for as.Date.
>>
>> The output and it's interpretation should be consistent, otherwise it
>> leads
>> to confusion when programming. I understand that the diff...
2018 Jun 08
0
Date class shows Inf as NA; this confuses the use of is.na()
...te[1:1], format: "1970-01-28"
> as.numeric(as.Date(27,origin = '1970-01-01'))
[1] 27
--
Don MacQueen
Lawrence Livermore National Laboratory
7000 East Ave., L-627
Livermore, CA 94550
925-423-1062
Lab cell 925-724-7509
?On 6/8/18, 1:02 PM, "R-devel on behalf of Werner Grundlingh" <r-devel-bounces at r-project.org on behalf of wgrundlingh at gmail.com> wrote:
In the following example, the date class shows Inf as NA
> as_date(Inf, origin = '1970-01-01')
[1] NA
This is misleading as is.na() reports incorrectly
> is....
2018 Jun 08
2
Date class shows Inf as NA; this confuses the use of is.na()
In the following example, the date class shows Inf as NA
> as_date(Inf, origin = '1970-01-01')
[1] NA
This is misleading as is.na() reports incorrectly
> is.na(as_date(Inf, origin = '1970-01-01'))
[1] FALSE
The correct approach here would probably to have an Inf (and -Inf)
*displayed* rather than NA.
[[alternative HTML version deleted]]
2018 Jun 09
0
Date class shows Inf as NA; this confuses the use of is.na()
...Inf days
I personally would go for NA as the "correct" date for an infinite value,
but given that this will have implications in other areas, there is a
possibility of breaking code and it should be investigated a bit further
imho.
Cheers
Joris
On Fri, Jun 8, 2018 at 11:21 PM, Werner Grundlingh <wgrundlingh at gmail.com>
wrote:
> Indeed. as_date is from lubridate, but the same holds for as.Date.
>
> The output and it's interpretation should be consistent, otherwise it leads
> to confusion when programming. I understand that the difference exists
> after asking a...
2018 Jun 12
0
Date class shows Inf as NA; this confuses the use of is.na()
...:
In format.Date(x) :
Some dates are not in the interval 01-01-01 and 9999-12-31, showing numerical value.
From: Gabe Becker <becker.gabe at gene.com>
Date: Monday, 11 June 2018 at 23:59
To: Emil Bode <emil.bode at dans.knaw.nl>
Cc: Joris Meys <jorismeys at gmail.com>, Werner Grundlingh <wgrundlingh at gmail.com>, "macqueen1 at llnl.gov" <macqueen1 at llnl.gov>, r-devel <r-devel at r-project.org>
Subject: Re: [Rd] Date class shows Inf as NA; this confuses the use of is.na()
format.Date <- function (x, ...)
{
xx <- format(as.POSIXlt(x), ...)
n...
2018 Jun 11
0
Date class shows Inf as NA; this confuses the use of is.na()
...value,
> but given that this will have implications in other areas, there is a
> possibility of breaking code and it should be investigated a bit further
> imho.
> Cheers
> Joris
>
>
>
>
> On Fri, Jun 8, 2018 at 11:21 PM, Werner Grundlingh <wgrundlingh at gmail.com>
> wrote:
>
>> Indeed. as_date is from lubridate, but the same holds for as.Date.
>>
>> The output and it's interpretation should be consistent, otherwise it
>> leads
>> to confusion when programming...
2018 Jun 12
3
Date class shows Inf as NA; this confuses the use of is.na()
...39; -- which is really used
internally for dates and date-times in POSIXct.
Martin
>
> From: Gabe Becker <becker.gabe at gene.com>
> Date: Monday, 11 June 2018 at 23:59
> To: Emil Bode <emil.bode at dans.knaw.nl>
> Cc: Joris Meys <jorismeys at gmail.com>, Werner Grundlingh <wgrundlingh at gmail.com>, "macqueen1 at llnl.gov" <macqueen1 at llnl.gov>, r-devel <r-devel at r-project.org>
> Subject: Re: [Rd] Date class shows Inf as NA; this confuses the use of is.na()
>
> format.Date <- function (x, ...)
> {
> xx <- forma...