[R] Sample Weights

[PIKAL Petr]

Hi

<snip>

> <amelia_marsh08 at yahoo.com> wrote:
> >Dear Sir,
> >
> >I do appreciate your views. Yes even I was also aware about the non
> >clarity in the question. Actaully, I have a large data having lots of
> >data of low magnitude and few of very high magnitude. In order to

can you explain what is low or high magnitude? Or better to use

dput(head(yourdata, 20))

and copy the result so as we might see better what you mean.

Just a guess, from your previous post are you iterested in some summary for your data?

> x<-c(6,6,5,6,4,6,8,4,6,6,6,3,4,6,5,7,7,4,3,5,5,5,3,6,7,4,4,7,4,3,4,6,4,6,5,4,4,7,6,8,5,6,5,5,8,2,3,5,7,5)
> table(x)
x
 2  3  4  5  6  7  8
 1  5 11 11 13  6  3

Cheers
Petr


> >analyse the same, some very senior person in the office suggested me
> to
> >assign weights to these obervations.
> >
> >Problem is this senior person is on office tour travelling into
> >Australia and unfortutely I can't even think of reverting to him owing
> >to his seniority. I tried to find through some R libraries if I can
> get
> >something about sample weights.
> >
> >But as you have pointed out, yes my question is too vague and feel
> >really sorry about the same. And I have recently started with R
> >language hence I am trying to learn some basics about R. Thanks for
> >pointing the difference between data.frame and vector.
> >
> >
> >Thanks again for your response.
> >
> >Regards
> >
> >Amelia
> >
> >______________________________________________________________________
> _
> >______________________
> >
> >
> >
> >On Monday, 27 July 2015 11:49 AM, Jeff Newmiller
> ><jdnewmil at dcn.davis.CA.us> wrote:
> >If you have a clear idea what meaning those weights have (?) in the
> >context of a specific calculation (?), and you know what the weights
> >are (?), then it is usually trivially easy to do in R. However,  your
> >question is vague on all of those points, so offering you a solution
> >seems like an invitation for you to mis-use any particular solution
> >offered. Please try to clarify what you are doing that "weights" will
> >help with, and yes, there may just be a weights argument to the
> >function that does that analysis that we can point you to.
> >
> >You also are unclear what the difference between a data frame and a
> >vector is... if it helps, a data frame is a list of vectors (typically
> >referred to as "columns") all with the same length...  your "mydat" is
> >a vector, not a data frame.
> >----------------------------------------------------------------------
> -----
> >Jeff Newmiller                        The     .....       .....  Go
> >Live...
> >DCN:<jdnewmil at dcn.davis.ca.us>        Basics: ##.#.       ##.#.  Live
> >Go...
> >                                     Live:   OO#.. Dead: OO#..
> Playing
> >Research Engineer (Solar/Batteries            O.O#.       #.O#.  with
> >/Software/Embedded Controllers)               .OO#.       .OO#.
> >rocks...1k
> >----------------------------------------------------------------------
> -
> >----
> >
> >Sent from my phone. Please excuse my brevity.
> >
> >
> >On July 26, 2015 11:00:54 PM PDT, Amelia Marsh via R-help
> ><r-help at r-project.org> wrote:
> >>Dear R Forum
> >>
> >>I have a data.frame as
> >>
> >>
> >>mydat =
> >>c(6,6,5,6,4,6,8,4,6,6,6,3,4,6,5,7,7,4,3,5,5,5,3,6,7,4,4,7,4,3,4,6,4,6
> ,
> >>5,4,4,7,6,8,5,6,5,5,8,2,3,5,7,5)
> >>
> >>Is there any library or way in R to allocate weights to these values?
> >>Actually I am having a large data, but for illustrative purpose, have
> >>considered just a small part of the same.
> >>
> >>Regards
> >>
> >>Amelia
> >>
> >>______________________________________________
> >>R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> >>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.
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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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