search for: chrornul

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2019 Jan 24
0
Possible setClassUnion Unloading Issue
...tpkg, 'R'), recursive=TRUE) writeLines('', file.path(testpkg, 'NAMESPACE')) description <- 'Package: testpkg\nTitle: Textpkg\nVersion: 0.1\n' writeLines(description, file.path(testpkg, 'DESCRIPTION')) code <- 'setClassUnion("chrOrNULL", c("character", "NULL"))' writeLines(code, file.path(testpkg, 'R', 'union.R')) install.packages(testpkg, repos=NULL, type='src') ## Load the package and check validity of a character object library('testpkg') v...