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...med some datas. Now I have the datas in h,x,y. I created a new matrix to use persp . But I got an error. The reason is probably the same length of x,y,z. But what can I do the draw my datas in a 3d graphic? (I want to use persp resp. image) Thanks a lot! Felix the code: ------------ h <- Measure3[,4] x <- Measure3[,3] y <- Measure3[,2] z <- matrix(c(x,y,h),ncol=3) z persp(x, y, z) > z [,1] [,2] [,3] [1,] 0.0 0 0.000000000 [2,] 0.1 0 0.000538990 [3,] 0.2 0 0.002315760 [4,] 0.3 0 0.005333315 [5,] 0.4 0 0.009595005 [6,] 0.5 0 0.0...

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