Aggregates population from the pixel level to the level of the area of interest.
Usage
aggPixelPreds(
Zg,
Ng,
areas,
urban = target.pop.mat$urban,
target.pop.mat = NULL,
use.density = FALSE,
stratify.by.urban = TRUE,
normalize = use.density
)Arguments
- Zg
nIntegrationPoint x nsim matrix of simulated response (population numerators) for each pixel and sample
- Ng
nIntegrationPoint x nsim matrix of simulated counts (population denominators) for each pixel and sample
- areas
nIntegrationPoint length character vector of areas (or subareas)
- urban
nIntegrationPoint length vector of indicators specifying whether or not pixels are urban or rural
- target.pop.mat
same as in
simPopCustom- use.density
whether to use population density as aggregation weights.
- stratify.by.urban
whether or not to stratify simulations by urban/rural classification
- normalize
if TRUE, pixel level aggregation weights within specified area are normalized to sum to 1. This produces an average of the values in Zg rather than a sum. In general, should only be set to TRUE for smooth integrals of risk.