Test for a valid SoilProfileCollection
checkSPC(x)
a SoilProfileCollection
object
TRUE or FALSE. Consider using rebuildSPC()
if FALSE.
Test for valid SoilProfileCollection
by checking for slots defined in
the class prototype. Likely only used between major versions of aqp
where
internal structure of SoilProfileCollection
has changed. Use
checkHzDepthLogic
to check for common errors in horizon depths.