cumsumAtSamplingLocation | R Documentation |
Function estimates cumulative sum of all values in a surface below the value at a specified longitude and latitude.
cumsumAtSamplingLocation(indivraster, Lat, Lon)
indivraster |
RasterLayer representing normalized probability of origin surface |
Lat |
Integer latitude |
Lon |
Integer longitude |
makecumsumSurface
# Generate example probability surface.
myiso <- raster::rasterFromXYZ(isoscape)
myiso_sd <- rasterFromXYZ(isoscape_sd)
exampleSurface <- isotopeAssignmentModel(
ID = "A",
isotopeValue = -100,
SD_indv = 5,
precip_raster = myiso,
precip_SD_raster = myiso_sd,
nClusters = FALSE
)
# Calculate odds ratio at specific point.
set.seed(1)
x <- sample( which( !is.na(exampleSurface[]) ), size = 1)
pt <- raster::xyFromCell(exampleSurface, x)
cumsumAtSamplingLocation(indivraster = exampleSurface, Lat = pt[2], Lon = pt[1])
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