[R-package] removed unnecessary Suggests dependencies #2543
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Noticed while working on #2530 that we have some packages listed as
Suggests
dependencies for the R package which do not show up anywhere in the examples, tests, or package code (as far as I can tell). We can remove:Ckmeans.1d.dp
DiagrammeR
igraph
stringi
vcd
I think we should remove these suggested dependencies to reduce the cost of building this library. In some cases R will install Suggests of all packages recursively (e.g. with
devtools::install()
). Also when usingR CMD check
, you will get an error if anySuggests
dependencies are not found, unless you explicitly express it with an environment variable.