Re: [R] writing dates to a file

From: David Winsemius <dwinsemius_at_comcast.net>
Date: Tue, 24 May 2011 17:07:34 -0400

On May 24, 2011, at 4:00 PM, Andy Zhu wrote:

> I think if you attach the output file would make clear. I guess it
> is very likely your merge has the problem, not the write.table.

No. The merge woks fine. write.table is not writing the date indices but write.zoo would. Tested.

-- 
david.

> You may need "by" parameter in merge based on the date. It also
> could be date value is converged to numeric value, in this case you
> just need to convert it back.
>
>
> --- On Tue, 5/24/11, Heiman, Thomas J. <theiman_at_mitre.org> wrote:
>
> From: Heiman, Thomas J. <theiman_at_mitre.org>
> Subject: [R] writing dates to a file
> To: "R-help_at_r-project.org" <R-help_at_r-project.org>
> Date: Tuesday, May 24, 2011, 2:34 PM
>
> Hi,
>
> I have attached the data files to this note. I use this code:
>
> library(zoo)
> z1 <- read.zoo("baltimorefludata.txt", format = "%m/%d/%Y", header =
> TRUE)
> z2 <- read.zoo("baltimorew.txt", format = "%Y%m%d", header = TRUE)
>
> z3<-merge(z1,z2)
>
> write.table(z3, "fluweatherdata_baltimore2.txt", sep="\t")
>
> R is writing the other data to the file but not the dates... Is
> there a way to also write the dates to the file? Thank you!!
>
> Sincerely,
>
> tom
>
> Thomas Heiman, PhD
> Info Systems Eng, Sr
> The MITRE Corporation | Center for Enterprise Modernization
> Office: 703-983-2951 | theiman_at_mitre.org<mailto:theiman_at_mitre.org>
>
> -----Inline Attachment Follows-----
>
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David Winsemius, MD West Hartford, CT ______________________________________________ R-help_at_r-project.org mailing list 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.
Received on Tue 24 May 2011 - 21:09:20 GMT

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