[R] Extracting a particular column from list

Rolf Turner r@turner @end|ng |rom @uck|@nd@@c@nz
Thu Jan 16 21:47:38 CET 2020

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 this 
> mail and  [1], [2], [3].
> [1] https://cran.r-project.org/web/packages/reprex/index.html
> [2] 
> https://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example 
> [3] 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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