[R] 3d data plot

[szisziszilvi]

Hello!

er.. do I need to calculate the values into a grid, or is there a way to
plot it without that? E.g cloud works, but I can't seem to get a surface
like that.

eg I made a test csv with some data

library(lattice)
mp <- read.csv("myPolinom.csv", sep=";", header=TRUE)
cloud(zz~xx*yy, data=mp) # works
wireframe(zz~xx*yy, data=mp) # does not work - because it would need the
grid points in a matrix? else?

other solution is also welcome...
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