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2002 Nov 04
0
persp(), x- and y-axis with character strings
Dear R list,
I want to plot the yield curve in a 3D graph: the x-axis refers to time; the
y-axis refers to the maturities and the z-axis are the yields.
The following code works fine:
persp(y, x, as.matrix(ypper), xlab="Last 50 periods", ylab="Maturities
(months)",zlab="Yields",
zlim=c(3,6),theta=130, phi=15, col="Seagreen", box=T, ticktype="detailed",
shade=0.3,
ltheta=270, lphi=30, r=sqrt(3), expand=.75, main="Historical yield curves")
Now, I...