logical equal to "AP". Data organised with age-groups in rows and period-groups in columns.
age1
numeric equal to 0.
per1
numeric equal to 1960.
coh1
NULL. Not needed when data.format="AP"
unit
numeric equal to 5. This is the width of the age and period groups.
per.zero
NULL. Not needed when data.format="AP"
per.max
NULL. Not needed when data.format="AP"
time.adjust
0. Thus age=0 in period=1960 corresponds to cohort=1960-0+0=1960, and indeed the
centers of the age and period groups, that is age=2 and period=1962
translate into cohort=1962-2+0=1960.
label
character. "RH mortality Denmark" or "RH mortality Norway".
References
Jacobsen, R, von Euler, M, Osler, M, Lynge, E and Keiding, N (2004) Women's death in Scandinavia - what makes Denmark different? European Journal of Epidemiology 19, 117-121.
Riebler, A and Held, L. (2010) The analysis of heterogeneous time trends in multivariate age-period-cohort models. Biostatistics 11, 57--59. Download: Open access, Supplementary material.
# NOT RUN {########################### It is convient to construct a data variable
data <- data.US.prostate.cancer()
## To see the content of the data
data
# }