[Solved] R: Edit the OGC WKT?

G. Moore Asks: R: Edit the OGC WKT?
I am encountering the familiar “Discarded datum unknown in Proj4 definition” warning in R using the CRS([OGC WKT string]) function.

At the moment I’m working with EPSG:6428, for which the OGC WKT string includes, "DATUM["unknown", SPHEROID["GRS80",6378137,298.257222101]]"

If I change this part of the OGC WKT string to: "DATUM["NAD83_National_Spatial_Reference_System_2011",SPHEROID["GRS80",6378137,298.257222101]]"

The warning goes away.

Is this edit necessary? Is it appropriate?

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