apcSimulate | R Documentation |
This functions simulates a data set of cases on the Lexis diagram from given age, period and cohort effects. Population numbers have to be given; can be one number for all age group/period combinations.
apcSimulate(intercept, age, period, cohort, periods_per_agegroup, population)
intercept |
Intercept |
age |
Vector of effect for age groups |
period |
Vector of effects for periods |
cohort |
Vector of effect for cohorts |
periods_per_agegroup |
Periods per age group |
population |
Population number. Either a matrix or a scalar. |
List with number of cases (matrix) and population numbers (matrix).
vignette("simulation", package = "bamp")
age=sqrt(seq(5,0,length=10)); age<-1-age-mean(age) period=15:1; period[8:15]<-8:15; period<-period/6; period<-period-mean(period) periods_per_agegroup=5; number_of_cohorts <- periods_per_agegroup*(10-1)+15 cohort<-rep(0,60); cohort[1:10]<-10:1; cohort[41:60]<- -(1:20)/2; cohort<-cohort/10; cohort<-cohort-mean(cohort) simdata<-apcSimulate(-5, age, period, cohort, periods_per_agegroup, 1e6) par(mfrow=c(3,1)) plot(age, type="l") plot(period, type="l") plot(cohort, type="l") ## Not run: simmod <- bamp(cases = simdata$cases, population = simdata$population, age = "rw1", period = "rw1", cohort = "rw1", periods_per_agegroup =periods_per_agegroup) plot(simmod) ## End(Not run)
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