[R] Factor analysis and time as an offset variable
tdehdari at gmail.com
Tue Sep 6 16:38:26 CEST 2016
Thank you for your reply. I am grouping citation and some social media
indictors ( number of tweets, mendeley readers, etc). The number of
citaions a paper recievs or the number of social media indicators that a
papers receives depends on time. For example a paper published in 2009 has
more time to get citation than a paper pubished lets say in year 2016.
That is the reason I like to consider time ( in my case the number of
years) a paper has been to the exposure of receiving citations in the
PhD Student of Library and Information Science
University of Barcelona, Spain
On Tue, Sep 6, 2016 at 4:31 PM, Jeff Newmiller <jdnewmil at dcn.davis.ca.us>
> That step is easy, but context is hard. You really need to provide a
> reproducible example. There are many models, many analysis tools, and many
> timescales to choose from. In fact, this could easily be mistaken for a
> question about statistics (not really on-topic here) since you have failed
> to indicate what any of your constraints or decisions in those areas are.
> It may be as simple as you not knowing about date or POSIXt arithmetic
> (see ?DateTimeClasses).
> Sent from my phone. Please excuse my brevity.
> On September 6, 2016 6:08:41 AM PDT, Tahereh Dehdarirad <
> tdehdari at gmail.com> wrote:
> >Is it possible to use time as an offset (exposure variable) in factor
> >analysis? If yes, would you please advise how?
> >Tahereh Dehdarirad
> >PhD Student of Library and Information Science
> >University of Barcelona, Spain
> > [[alternative HTML version deleted]]
> >R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> >PLEASE do read the posting guide
> >and provide commented, minimal, self-contained, reproducible code.
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