yvals.default: yvals.default function
Description
Default method for extracting 'y values' looks for $Y, $y in that order.
Usage
# S3 method for default
yvals(obj, ...)
See Also
xvals, yvals, zvals, xvals.default, zvals.default, xvals.fromXYZ, yvals.fromXYZ, zvals.fromXYZ, xvals.SpatialGridDataFrame, yvals.SpatialGridDataFrame, zvals.SpatialGridDataFrame