I want to acquire the list of functions, defined in the package and exported, but not the ones that were imported from other packages?
The following solutions are nice, but list also function re-exported: Seeking Functions in a Package
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install.packages ("ggplot2", dependencies= "TRUE") – Arun kumar mahesh Jun 26 '19 at 12:35
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getNamespaceExports() is mentioned in one of the answers to the question you linked; luckily, there is a companion to it, getNamespaceImports(). Then we can just find the setdiff() between the two. For example:
devtools_exports <- getNamespaceExports("devtools")
devtools_imports <- getNamespaceImports("devtools")
devtools_exported_not_imported <- setdiff(devtools_exports, devtools_imports)
"install_github" %in% devtools_exports
# [1] TRUE
"install_github" %in% devtools_exported_not_imported # comes from remotes
# [1] FALSE
duckmayr
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For me it required also "unlist" for both exports and imports, but otherwise it's a nice solution, thanks! – JelenaČuklina Jun 26 '19 at 12:50
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Actually, I found one more solution that seems to work well:
unclass(lsf.str(envir = asNamespace('myPackage')))
The benefit is that I don't get these system variables:
"system.file" "library.dynam.unload" ".__global__"
JelenaČuklina
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Nice solution (+1). I will say that I didn't get those system variables with my solution on my machine, but overall I would still prefer your more concise/less involved approach over mine – duckmayr Jun 26 '19 at 13:48