[R] Zoo or TS

[miya]

Sorry, forgot to attach the error it is giving me.

> if(NYT["Title"]=="A")
+ plot(NYT["B"],ylim=c(0,50),xlim=c(0,50),ylab="B",xlab="A")
Warning message:
In if (NYT["Title"] == "A") plot(NYT["B"],  :
  the condition has length > 1 and only the first element will be used

Thank you



Tony Breyal wrote:
> 
> I think you need to put quotes around the column header name,
> something like: NYT["Title"]
> 
> example:
>> my.df <- data.frame(header1=1:3, header2=1:3)
>> my.df[header2]
> Error in `[.data.frame`(my.df, header2) : object "header2" not found
>> my.df["header2"]
>   header2
> 1       1
> 2       2
> 3       3
> 
> Hope that helps a little,
> Tony Breyal
> 
> On 22 Feb, 04:41, miya <ontiveros_pal... at yahoo.com> wrote:
>> Hi everyone,
>> I'm trying to plot some data across time. I have a list of articles,
>> ranks,
>> date/times, authors, etc. Someone suggested using zoo and someone
>> suggested
>> using ts. I'm pretty new at this and have been trying a simple if()
>> plot()
>> statement, but it doesn't seem to work. I keep getting an error that
>> Title
>> does not exist. Basically its saying that the headers do not exist as
>> objects. Can anyone please help.
>>
>> Below is what I've been trying to do and a sample of the data I am
>> working
>> with.
>>
>> Thanks in advance.
>>
>> Time    Date    Rank    Topic   Title   Author
>> 0       xxxx    1       A       J       By PAUL
>> 0       xxxx    2       B       K       By PERRI
>> 0       xxxx    3       C       L       By WILL
>> 0       xxxx    4       D       M       By ANA
>> 1       xxxx    1       A       J       By PAUL
>> 1       xxxx    2       B       L       By WILL
>> 1       xxxx    3       C       M       By ANA
>> 1       xxxx    4       D       K       By PERRI
>>
>> if(NYT[Title]=="For Catholics, a Door to Absolution Is Reopened")
>> plot(NYT[Rank])
>>
>> Error in `[.data.frame`(NYT, Title) : object "Title" not found
>> --
>> View this message in
>> context:http://www.nabble.com/Zoo-or-TS-tp22143632p22143632.html
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>>
>> ______________________________________________
>> R-h... at r-project.org mailing
>> listhttps://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting
>> guidehttp://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
> 
> ______________________________________________
> 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.
> 
> 

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