TRUE or FALSE. Consider using rebuildSPC() if FALSE.
Arguments
x
a SoilProfileCollection object
Author
D.E. Beaudette
Details
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.