getPolyYMeanFlag: Extract regional yearly mean of air pollutants

In lspatial/sptemUS: Constrained Spatiotemporal Mixed-Effect Models for Exposure Estimation of Air Pollutants

Description

Extract regional monthly mean of air pollutants

Usage

getPolyYMeanFlag(tFlag, tpolyFl, biweekAvFl, pntlayer, ridF = "rid", siteid = "ID2")

Arguments

tFlag	project flag path
tpolyFl	polygon layer name
biweekAvFl	CSV primary file name (no extension) of biweekly mean values
pntlayer	Subject location SpatialPointsDataFrame
ridF	Regional id
siteid	AQS site id

Details

This funciton is to extract the yearly mean of air pollutants

Value

The values for yearly mean

Author(s)

Lianfa Li

Examples

data(sc_sample,sc_sample_loc)
sc_sample_p=sc_sample
index=match(sc_sample_p$gid,sc_sample_loc$gid)
coordinates(sc_sample_p)=coordinates(sc_sample_loc[index,])
sp::proj4string(sc_sample_p)=sp::proj4string(sc_sample_loc)

sc_sample_p$year=as.integer(format(sc_sample$s_date,"%Y"))
sc_sample$ymean_no2=getPolyYMeanFlag(tFlag="sc_sample",tpolyFl="aqs_added_sites_no2_poly",
     biweekAvFl="aqs_added_biweek_no2_yly", pntlayer=sc_sample_p,ridF="rid",siteid="ID2",yearF="year")

lspatial/sptemUS documentation built on May 29, 2019, 3:42 a.m.