distedge: Calculate raster distance to an edge.
In allanjust/aodlur: Tools For Land Use Regression With AOD

Description Usage Arguments Value Examples

Calculate raster distance to an edge.

1 2	distedge(DT, rowvar = "hdfrow", colvar = "hdfcol", nonmissingmask = "revna")

`DT`	a data.table
`rowvar`	character of the column name for row
`colvar`	character of the column name for column
`nonmissingmask`	character of the column name for the non missing mask

vector of distance to edge.

 
aod20150211 <- merge(aod20150211, basegrid, by = "aodid", all.x = TRUE)
aod20150211[, revna := NA_integer_]
aod20150211[is.na(aod47), revna := 1]
distedge(aod20150211, rowvar = "hdfrow", colvar = "hdfcol", nonmissingmask = "revna")