[R] Changing Tick Mark Values for lattice / wireframe

Deepayan Sarkar deepayan.sarkar at gmail.com
Fri Jul 6 23:51:30 CEST 2007


On 7/6/07, Anthony Pezzola <apezzola at reed.edu> wrote:
> How can I change the tick mark values in lattice, specifically wireframe?
>
> I have a 11*46 matrix of values that I am plotting using wireframe.
> Unfortunely, the values range from 0.1-1.1 and 0.5-5.  Using the code
> below the tick marks have are (2,4,6,8,10) and (10,20,30,40).

You will need to use the formula method. Here's one possibility:

mydata <-
    expand.grid(row = rowvals,
                column = colvals)
mydata$z <- as.vector(as.numeric(output.matrix))

wireframe(z ~ x * y, data = mydata, ...)

It probably makes sense to allow this for matrices directly, and I'll
add something in the next update.

-Deepayan


> Thanks in advance.
>
> graphic5 <- wireframe(output.matrix, shade= TRUE,
> scales = list(arrows = FALSE,
> cex=.6, col="black", font= 3, tck=1),
> xlab=list("Employees", cex=.65, col="black", rot=30),
> ylab=list("Political Concentration", cex=.65, col="black", rot=-40),
> zlab=list(label="Probability of Protection", cex=.65, rot=90, col="black")
> )
>
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