ata | R Documentation |
Calculate the matrix of age-to-age factors
(also called "report-to-report" factors, or "link ratios")
for an object of class triangle
.
ata(Triangle, NArow.rm = TRUE, colname.sep = "-",
colname.order=c("ascending","descending"))
Triangle |
a loss "triangle". Must be a |
NArow.rm |
|
colname.sep |
a |
colname.order |
"ascending" indicates that the less mature age comes first in the column labels of the ata matrix |
ata
constructs a matrix of age-to-age (ata) factors resulting
from a loss "triangle" or a matrix
.
Simple averages and volume weighted averages are saved as
"smpl" and "vwtd" attributes, respectively.
A matrix
with "smpl" and "vwtd" attributes.
Daniel Murphy
summary.ata
, print.ata
and chainladder
ata(GenIns)
# Volume weighted average age-to-age factor of the "RAA" data
y <- attr(ata(RAA), "vwtd")
y
# "To ultimate" factors with a 10% tail
y <- rev(cumprod(rev(c(y, 1.1))))
names(y) <- paste(colnames(RAA), "Ult", sep="-")
y
## Label the development columns in "ratio-type" format
ata(RAA, colname.sep=":", colname.order="desc")
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.