SEERaBomb (version 2015.2)

fillPYM: Fills age-year person year (PY) matrix

Description

This internal function converts a matrix with lots of individual PY contributions and starting ages and years as rows, into a population-level PY histrogram matrix of (1-year age)x(1-year year) resolution bins. The output matrix is more square-like (currently at 40 calendar years by 126 age years) than the tall dataframe-like input matrix.

Usage

fillPYM(PY,PYM)

Arguments

PY

Tall input matrix of individual survival time person years at risk.

PYM

Output PY matrix with age and calendar year rows and columns at single year resolution.

Value

• The second argument is the output. The matrix should be filled with zeros in R before calling this function. After the call, it will be filled; this function uses pointers in Rcpp C++ code.

Examples

yrs=1973:1990
  ages=0.5:70.5
  mat=matrix(0,ncol=length(yrs),nrow=length(ages))
  colnames(mat)=yrs
  rownames(mat)=ages
(PYin=structure(c(3.5, 11.25,5.2, 51.5, 58.5,0.75, 1974, 1976,1978),.Dim = c(3L,3L), 
                  .Dimnames=list(c("1","2","3"),c("py", "ageL", "year"))))
fillPYM(PYin, mat)