search for: simpleduplicateclass

( A similar problem is also reported by Sebastian P. Luque with library(maptools) library(trip) in the vignette as below ). I am writing a vignette which loads RMySQL and RPostgreSQL. This produces the warning: Loading required package: DBI Warning in .simpleDuplicateClass(def, prev) : A specification for class ?dbObjectId? in package ?RPostgreSQL? seems equivalent to one from package ?RMySQL? and is not turning on duplicate class definitions for this class This can be reproduced by running R CMD Sweave --pdf Atest.Stex where the file Atest.Stex has the lin...

.../globaltest_5.8.1.tar.gz' Content type 'application/x-gzip' length 956376 bytes (933 Kb) opened URL ================================================== downloaded 933 Kb * installing *source* package ?globaltest? ... ** R ** data ** inst ** preparing package for lazy loading Warning in .simpleDuplicateClass(def, prev) : A specification for class ?data.frameOrNULL? Creating a generic function for ?sort? from package ?base? in package ?globaltest? Creating a generic function for ?model.matrix? from package ?stats? in package ?globaltest? Creating a generic...

...39; for this package but if you scroll down the report and look at the output produced during installation (globaltest.Rcheck/00install.out), you'll see this: * installing *source* package ?globaltest? ... ** R ** data ** inst ** preparing package for lazy loading Warning in .simpleDuplicateClass(def, prev) : A specification for class ?data.frameOrNULL? in package ?globaltest? seems equivalent to one from package ?Biobase? and is not turning on duplicate class definitions for this class Creating a generic function for ?sort? from package ?base? in package ?globaltest? Creating...