[R] Extracting a particular column from list
ru|pb@rr@d@@ @end|ng |rom @@po@pt
Fri Jan 17 08:09:05 CET 2020
Às 22:03 de 16/01/20, Mark Leeds escreveu:
> I nominate the last sentence of Rolf's comment as a fortune.
> On Thu, Jan 16, 2020 at 3:48 PM Rolf Turner <r.turner using auckland.ac.nz
> <mailto:r.turner using auckland.ac.nz>> wrote:
> On 17/01/20 1:55 am, Rui Barradas wrote:
> > Hello,
> > What column and what list?
> > Please post a reproducible example, see the link at the bottom of
> > mail and , , .
> >  https://cran.r-project.org/web/packages/reprex/index.html
> > 
> >  https://stackoverflow.com/help/mcve
> > Hope this helps,
> The OP should note that lists in general *do not have* columns. Data
> frames (which are a special case of lists) do have columns.
> Lists have "*entries*" or "components". It is important to get your
> terminology right and to understand the concepts that you are dealing
> with. Slap-dash hammer and hope is a recipe for disaster, especially
> in R.
> Rolf Turner
> Honorary Research Fellow
> Department of Statistics
> University of Auckland
> Phone: +64-9-373-7599 ext. 88276
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