[R] Date Conversion Problem

[Bert Gunter]

Extra packages are not needed.

My question is: why change the character representation at all?  See the
format argument of ?as.Date.

> as.Date("20010102",format="%Y%m%d")
[1] "2001-01-02" ## the default format for the print method for Date objects


Bert Gunter

"The trouble with having an open mind is that people keep coming along and
sticking things into it."
-- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )


On Wed, Aug 12, 2020 at 8:07 AM Eric Berger <ericjberger using gmail.com> wrote:

> library(lubridate)
> a <- "20200403"
> lubridate::ymd(a)
> # 2020-04-03
>
> HTH,
> Eric
>
>
> On Wed, Aug 12, 2020 at 5:57 PM Stephen P. Molnar <s.molnar using sbcglobal.net>
> wrote:
>
> > i have written an R script which allow me to plot the number of Covid-10
> > cases reported by he state of Ohio. In that se t of data the date format
> > is in the form yyyy-mm-dd.
> >
> > My script uses:
> >
> > datebreaks <- seq(as.Date("2020-01-01"), as.Date("2020-08-10"), by="1
> > week")
> >             .
> >             .
> >             .
> >        + scale_x_date(breaks=datebreaks)
> >        + theme(axis.text.x = element_text(angle=30, hjust=1))
> >
> > to plot the data.
> >
> > The COVID Tracking Project publishes considerably more data than does
> > the state of Ohio. However, The project supplies daily statistics using
> > the date format YYYYMMDD.I have done some searching, but I can't seem to
> > find a solution (that I can understand).
> >
> > How can I change the date forma from YYYYMMDD tp YYYY-MM-DD?
> >
> > Thanks is advanced.
> >
> > --
> > Stephen P. Molnar, Ph.D.
> > www.molecular-modeling.net
> > 614.312.7528 (c)
> > Skype:  smolnar1
> >
> > ______________________________________________
> > R-help using 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.
> >
>
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>
> ______________________________________________
> R-help using 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.
>

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