[R] Extracting values from a list

[Paul Hiemstra]

chipmaney wrote:
> Thanks, as a follow-up, how do i extract the list element name (ie, 4-2 or 44-1)
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Look at names(your_list)

cheers,
Paul
> thanks,
>
> chipper
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> Date: Thu, 18 Feb 2010 11:56:45 -0800
> From: ml-node+1560750-540257540-69226 at n4.nabble.com
> To: chipmaney at hotmail.com
> Subject: Re: Extracting values from a list
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> Try this:
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> sapply(x, '[', 'p.value')
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> On Thu, Feb 18, 2010 at 5:21 PM, chipmaney <[hidden email]> wrote:
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>> I have run a kruskal.test() using the by() function, which returns a list of
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>> results like the following (subset of results):
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>> Herb.df$ID: 4-2
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>>       Kruskal-Wallis chi-squared = 18.93, df = 7, p-value = 0.00841
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>> --------------------------------------------------------------------
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>> Herb.df$ID: 44-1
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>>        Kruskal-Wallis chi-squared = 4.43, df = 6, p-value = 0.6187
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>> So then, how do extract a vector of p-values (i.e., result$p.value) for
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>> every element in the list?
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>> --
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>> View this message in context: http://n4.nabble.com/Extracting-values-from-a-list-tp1560701p1560701.html
>> Sent from the R help mailing list archive at Nabble.com.
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>> ______________________________________________
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>> [hidden email] mailing list
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>> 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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> ------------------------------------------------------------------------
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> ______________________________________________
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>   


-- 
Drs. Paul Hiemstra
Department of Physical Geography
Faculty of Geosciences
University of Utrecht
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