Dear expeRts, ? ? i want to know how to generate?the 2 dimensional mesh (i.e. grid on?the torus) of size n,?The grid mesh (with wrap around of?boundaries into a torus to avoid edge-effects). and?the hyper-cube which is the log2(n)-dimensional grid of size n.?? ?Does anyone happen to know it? BTW, how to find "spargraphs" this package, i find almost everywhere i know but still can not find it in R, is it a matlab package or other language package? Tks! -- PO SU mail: desolator88 at 163.com Majored in Statistics from SJTU
Jeff Newmiller
2015-Aug-25 15:45 UTC
[R] how to generate 2 dimensional mesh and hyper-cubes ?
I would think that ?expand.grid with appropriate choice of coordinates would be
the best tool for defining the mesh. As for edge effects, doesn't that
depend on the (unnamed) algorithms you intend to apply?
As for "spargraphs"... findFn from package sos could not find it, and
I have never heard of it... I recommend using a web search engine, as I doubt it
has anything to do with R.
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On August 25, 2015 4:15:15 AM PDT, PO SU <rhelpmaillist at 163.com>
wrote:>
>
>Dear expeRts,
>? ? i want to know how to generate?the 2 dimensional mesh (i.e. grid
>on?the torus) of size n,?The grid mesh (with wrap around of?boundaries
>into a torus to avoid edge-effects). and?the hyper-cube which is the
>log2(n)-dimensional grid of size n.?? ?Does anyone happen to know it?
>BTW, how to find "spargraphs" this package, i find almost
everywhere i
>know but still can not find it in R, is it a matlab package or other
>language package? Tks!
>
>
>--
>
>PO SU
>mail: desolator88 at 163.com
>Majored in Statistics from SJTU
>______________________________________________
>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.
David Winsemius
2015-Aug-25 16:17 UTC
[R] how to generate 2 dimensional mesh and hyper-cubes ?
On Aug 25, 2015, at 4:15 AM, PO SU wrote:> > > Dear expeRts, > i want to know how to generate the 2 dimensional mesh (i.e. grid on the torus) of size n, The grid mesh (with wrap around of boundaries into a torus to avoid edge-effects). and the hyper-cube which is the log2(n)-dimensional grid of size n. Does anyone happen to know it? BTW, how to find "spargraphs" this package, i find almost everywhere i know but still can not find it in R, is it a matlab package or other language package? Tks!In searching I found nothing re: "spargraphs". I did find some genetics oriented tutorials for students that mentioned producing "spar graphs" with the limma-package. You might address this question to the BioConductor mailing list if your area of interest is genetics/molecular biology. -- David Winsemius Alameda, CA, USA
Tks a lot, i will study the limma package as you mentioned first ~ ~ -- PO SU mail: desolator88 at 163.com Majored in Statistics from SJTU At 2015-08-26 00:17:18, "David Winsemius" <dwinsemius at comcast.net> wrote:> >On Aug 25, 2015, at 4:15 AM, PO SU wrote: > >> >> >> Dear expeRts, >> i want to know how to generate the 2 dimensional mesh (i.e. grid on the torus) of size n, The grid mesh (with wrap around of boundaries into a torus to avoid edge-effects). and the hyper-cube which is the log2(n)-dimensional grid of size n. Does anyone happen to know it? BTW, how to find "spargraphs" this package, i find almost everywhere i know but still can not find it in R, is it a matlab package or other language package? Tks! > >In searching I found nothing re: "spargraphs". I did find some genetics oriented tutorials for students that mentioned producing "spar graphs" with the limma-package. You might address this question to the BioConductor mailing list if your area of interest is genetics/molecular biology. > >-- > >David Winsemius >Alameda, CA, USA >[[alternative HTML version deleted]]