| pwiselinterp {cmna} | R Documentation |
Piecewise linear interpolation
Description
Finds a piecewise linear function that interpolates the data points
Usage
pwiselinterp(x, y)
Arguments
x |
a vector of x values |
y |
a vector of y values |
Details
pwiselinterp finds a piecewise linear function that
interpolates the data points. For each x-y ordered pair, there
function finds the unique line interpolating them. The function will
return a data.frame with three columns.
The column x is the upper bound of the domain for the given
piece. The columns m and b represent the coefficients
from the y-intercept form of the linear equation, y = mx + b.
The matrix will contain length(x) rows with the first row having m and b of NA.
Value
a matrix with the linear function components
See Also
Other interp:
bezier,
bilinear(),
cubicspline(),
linterp(),
nn(),
polyinterp()
Other algebra:
bilinear(),
cubicspline(),
division,
fibonacci(),
horner(),
isPrime(),
linterp(),
nthroot(),
polyinterp(),
quadratic()
Examples
x <- c(5, 0, 3)
y <- c(4, 0, 3)
f <- pwiselinterp(x, y)