yvals.fromXYZ: yvals.fromXYZ function
Description
Method for extracting 'y values' from an object of class fromXYZ
Arguments
obj
a spatialAtRisk object
See Also
xvals, yvals, zvals, xvals.default, yvals.default, zvals.default, xvals.fromXYZ, zvals.fromXYZ, xvals.SpatialGridDataFrame, yvals.SpatialGridDataFrame, zvals.SpatialGridDataFrame