approxExtrap
From Hmisc v4.02
by Frank E Harrell Jr
Linear Extrapolation
Works in conjunction with the approx
function to do linear
extrapolation. approx
in R does not support extrapolation at
all, and it is buggy in SPlus 6.
Usage
approxExtrap(x, y, xout, method = "linear", n = 50, rule = 2, f = 0, ties = "ordered", na.rm = FALSE)
Arguments
Details
Duplicates in x
(and corresponding y
elements) are removed
before using approx
.
Value

a vector the same length as
xout
See Also
Examples
approxExtrap(1:3,1:3,xout=c(0,4))
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