| inv {tfarima} | R Documentation |
Inverse of a lag polynomial
Description
inv inverts a lag polynomial until the indicated lag.
Usage
inv(lp, ...)
## S3 method for class 'lagpol'
inv(lp, lag.max = 10, ...)
Arguments
lp |
an object of class |
... |
additional arguments. |
lag.max |
largest order of the inverse lag polynomial. |
Value
inv returns a numeric vector with the coefficients
of the inverse lag polynomial truncated at lag.max.
Examples
inv(as.lagpol(c(1, 1.2, -0.8)))
[Package tfarima version 0.3.2 Index]