spdep-devel moves sp from depends to suggests

adeverse / adegraphics

An S4 Lattice-Based Package for the Representation of Multivariate Data

https://adeverse.github.io/adegraphics/

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spdep-devel moves sp from depends to suggests #14

Closed rsbivand closed 1 year ago

rsbivand commented 1 year ago

tests/nbgraph.R uses sp without requiring it, because spdep has depended on sp. This is mis-understood as meaning that only "Spatial" objects can be used with spdep, so sp is moving from Depends: to Suggests: in spdep.