Dear Researcher,

I have the following data base:

my.result.df
<-data.frame(cols=c(0,1,2,3,4,5,6,8,13,16,20,22,27,30,31,39),rows=c(0,1,2,3,4,5,6,8,13,16,20,22,27,30,31,39),value=c(-0.058456362,0.011803170,-0.037236563,0.111767859,0.232420426,-0.073219997,0.046304199,-0.006668100,0.118500393,-0.077741739,-0.142726551,0.001646274,0.102012128,0.169143199,0.064334290,0.242530085))

with positive and negative value.

x <- my.result.df[,1]
y <- my.result.df[,1]
z <- my.result.df[,2]



    s3d <-scatterplot3d(x,y,z,
        xlim = c(0,40),
        lwd=1,
        pch=16,
        highlight.3d=TRUE,
        grid=F,
        axis=T,
        xlab="day difference",
        ylab="month",
        zlab="value",
        main="MyScatterplot)

I wish to create a plane located at "0" value of z axis to show the value
below and upper 0.

s3d$plane3d(x, y, 0,lty.box = "solid")

but I cann't not close the plane and I have the following message error

Warning messages:
1: In x * x.coef :
  longer object length is not a multiple of shorter object length
2: In x * x.coef :
  longer object length is not a multiple of shorter object length
3: In Intercept + x.min * x.coef + y.coef :
  longer object length is not a multiple of shorter object length
4: In Intercept + x.max * x.coef + y.coef :
  longer object length is not a multiple of shorter object length
5: In z1 + y * yz.f :
  longer object length is not a multiple of shorter object length
6: In z2 + y * yz.f :
  longer object length is not a multiple of shorter object length

some researchers know i can create a plane with "lm" located on zero value
of z.

thanks in advance
Gianni

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