aused some problems / confusion. I will reply inline below:
>
> From: Enrico Guastaldi [mailto:enrico.guasta...@gmail.com]
> Sent: 05 October 2009 17:04
> To: Cornford, Dan
> Cc: ai-geost...@jrc.it; r-sig-geo@stat.math.ethz.ch
> Subject: Re: AI-GEOSTATS: Interpolation of measures wi
--
>
> Dr Dan Cornford
>
> Senior Lecturer, Computer Science and NCRG
>
> Aston University, Birmingham B4 7ET
>
>
>
> www: http://wiki.aston.ac.uk/DanCornford/
>
>
>
> tel: +44 (0)121 204 3451
>
> mob: 07766
us or minus the error
gave me by the laboratory.
Could anyone tell me what kind of function should I use for handling this
problem?
It should be nice some R package, of course, but I need to understand the
background theory.
Thanks in advance,
Regards,
Enrico Guastaldi
[[alternative HTML ve
ropose the question to R-help mailing list.
Thanks a lot!
Enrico Guastaldi
2009/1/22 Barry Rowlingson
> 2009/1/22 Enrico Guastaldi :
>
> > Moreover, the graphic result is very poor, if I compare the resolution of
> > two graphic windows (see attached file, Linux ont he left, a
machine is 10 times faster!
Any suggetions?
Thanks,
--
Enrico Guastaldi
[[alternative HTML version deleted]]
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9,11,7,20,10)
>
> y1 <- y[-length(y)]
> y2 <- y[-1]
> dy <- y2 - y1
> dx <- x[-1] - x[-length(x)]
> dxy <- dx * (y1 + 0.5 * dy)
> integral <- sum(dxy)
>
> Robert
>
> > Today's Topics:
> >
> > 1. calculating integral for spectral s
king about
spectral signature.
I think I need some function that "constructs" (not interpolates) a polyline
from these x,y points and then calculate the underlying area, because I've
to compare several distributions.
Could anyone help me?
Thanks
--
Enrico Guastaldi
Centro di GeoT
