This message should be sent to the package maintainer, not to this list. Moreover, it works fine with my installation (i.e., I don't get the bug you describe):
R: platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status beta major 2 minor 2.0 year 2005 month 09 day 24 svn rev 35666 language R akima: Package: akima Version: 0.4-5 Date: 2005-07-21 Best, Renaud 2005/10/3, [EMAIL PROTECTED] <[EMAIL PROTECTED]>: > Full_Name: Jonathan Lees > Version: 2.0.1 > OS: linux-gnu > Submission from: (NULL) (152.2.75.65) > > > there is a problem with calculating the convex hull in 2-D interpolation using > the codes interp fromt eh akima package: > > x =c(0.6505304, -1.1821562, -0.2600792, 0.7913716) > y = c(1.0424226, 0.1754048, -1.4523334, 0.2349112) > z = c(0.000, 3.042, 0.370, 0.122) > > > EX = seq(from=min(x), to=max(x), length=100) > WHY = seq(from=min(y), to=max(y), length=100) > > ZZ = interp(x=x, y=y, z=z, xo=EX, yo=WHY, extrap=FALSE) > > plot(x,y, type='n') > image(ZZ, add=TRUE) > points(x,y) > text(x,y,labels=z) > > BUG: > Notice the convex hull is wrong. > It includes only 3 of the 4 points provided. > If you add another point near by it does some > really wierd stuff. > x = c(x, -0.3950865) > y = c(y, -1.449117) > z = c(z, .37) > > > > I do not think it should behave in this manner. > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > -- Renaud LANCELOT Directeur Adjoint chargé des Affaires Scientifiques Deputy Director for Scientific Affairs Département EMVT du CIRAD, TA 30/B Campus International de Baillarguet 34398 Montpellier Cedex 5 - France Tel. +33 (0)4 67 59 37 17 Secr. +33 (0)4 67 59 39 04 Fax +33 (0)4 67 59 37 95 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
