zvals.fromXYZ: zvals.fromXYZ function
Description
Method for extracting 'z values' from an object of class
fromXYZUsage
## S3 method for class 'fromXYZ':
zvals(obj, ...)
Arguments
obj
a spatialAtRisk object
See Also
xvals, yvals, zvals,
xvals.default, yvals.default,
zvals.default, xvals.fromXYZ,
yvals.fromXYZ, xvals.SpatialGridDataFrame,
yvals.SpatialGridDataFrame,
zvals.SpatialGridDataFrame