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abernethy
2013 Aug 24
2
Correct NAMESPACE approach when writing an S3 method for a generic in another package
...d method in my package, without
rgl being in Depends.
Note that I importFrom(rgl, plotd3d) and register my S3 method via
S3Method() in the NAMESPACE.
If rgl is not in Depends but in Imports, I see this when checking the package
> ## 3D plot of data with curve superimposed
> plot3d(aber.pc, abernethy2)
Error: could not find function "plot3d"
I presume this is because rgl's namespace is only loaded but the
package is not attached to the search path.
Writing R extensions indicates that one can export from a namespace
something that was imported from another package namespace. I tho...