[R] Invalid Z argument error in persp.default

[Duncan Murdoch]

On 13-09-24 6:19 AM, Babak Bastan wrote:
> I do the folloowing in order to get 3D Plot:
>
> y<-1:(point/2)
> x<-20:30
> z<-r[1:(point/2)]
> persp(x,y,z,theta = 135, phi = 30, col = "green3", scale = FALSE,
> ltheta = -120, shade = 0.75,
>        border = 1)
>
>
> y:
>
> [1] 1 2 3 4 5
>
> x:
>
> [1] 20 21 22 23 24 25
>
> z:
>
> [1] 4811.000000    3.593025    6.968666    4.908174    5.332700
>
> but i always get the error message Error in persp.default(x, y, z, theta =
> 135, phi = 30, col = "green3", :invalid 'z' argument
>
> How may I solve the issue?

See ?persp.  z should be a 5x5 matrix to match your x and y.

Duncan Murdoch