| approxExtrap {Hmisc} | R Documentation |
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 S-Plus 6.
approxExtrap(x, y, xout, method = "linear", n = 50, rule = 2, f = 0, ties = "ordered", na.rm = FALSE)
x |
|
y |
|
xout |
|
method |
|
n |
|
rule |
|
f |
see approx |
ties |
applies only to R. See approx |
na.rm |
set to TRUE to remove NAs in x and
y before proceeding |
Duplicates in x (and corresponding y elements) are removed
before using approx.
a vector the same length as xout
Frank Harrell
approxExtrap(1:3,1:3,xout=c(0,4))