[R] 3d graph to show matrix of z matrix values

[playballa23]

Hello, 

I'm not getting a great looking 3d graph when plotting my z values:

    x <- seq(0.0, max(d1), max(d1)/20)
    y <- seq(0.0, max(d2), max(d2)/20)
    z <- matrix(NA, length(x), length(y))

persp3d(x, y, z, phi=30, theta=30, scale=TRUE,shade = 0.75,
col=pal[col.ind], xlab=var.name[1], ylab=var.name[2], main="3d plot")

Are there other options like persp3d where I can just plot my z-values along
the x and y axis?? 

Thanks in advance

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