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