Hi library(akima) function contour(interp(x,y,z))
is one possibility Cheers Petr On 19 Jan 2058 at 48:211, L Z wrote: > Question: > I have matrix (n x3) that represents discrete data. > Each row of matrix is 3-D point (x,y,z). I would like > to get contour map (z value) at two dimension > (x,y). How can I use related contour function to do > this job? > I am not sure if I clarify this question. For example, > we can get point (x,y) > at 2 dimension according to first two columns of > matrix. Then I want to connect > same value z=(x,y). Thanks! > zhang > > The data file looks like this: > X y z > 4 0.33 0.99 > 4 0.5 1.2 > 5 0.66 1.2 > 5 0.7 1.5 > 6 2 1.2 > ? > > ______________________________________________ > [EMAIL PROTECTED] mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-help Petr Pikal [EMAIL PROTECTED] ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
