Add or change the data from a column accessed by name. Column names other
than profile ID are not shared between site and horizons. The benefit of
using double bracket setter over
$ is that
name can be
calculated, whereas with
$, it must be known a priori and hard coded.
When using the double bracket setter the length of input and output matching either the number of sites or number of horizons is used to determine which slot new columns are assigned to.
# S4 method for SoilProfileCollection,ANY,ANY [[(x, i) <- value
an expression resolving to a single column name in site or horizon table-
New value to replace -- unit length or equal in length to number of sites or horizons in the collection.