gene_member_list <- pcxn.gmembers("Alzheimer's disease (KEGG)")
Error in pcxn.gmembers("Alzheimer's disease (KEGG)") :
could not find function "pcxn.gmembers"

install.packages("pcxn_0.99.0.tar.gz")
inferring 'repos = NULL' from 'pkgs'

• installing source package ‘pcxn’ ...
  ** R
  ** data
  *** moving datasets to lazyload DB
  ** inst
  ** preparing package for lazy loading
  ** help
  *** installing help indices
  ** building package indices
  ** installing vignettes
  ** testing if installed package can be loaded
• DONE (pcxn)

library(pcxn)
Error in FUN(X[[i]], ...) :
cannot open file '/Library/Frameworks/R.framework/Versions/3.4/Resources/library/pcxn.db/data/Rdata.rdb': No such file or directory
In addition: Warning message:
In FUN(X[[i]], ...) : restarting interrupted promise evaluation

heatmap scale can have fewer significant digits. In the description of pcxn.heatmap, it would be better to add that "Color represents correlation coefficients."

To retrieve the genes from a geneset, I used the function - pcxn.gene_members("Alzheimer's disease (KEGG)")

which gives the following error - Error in attachNamespace("org.Hs.eg.db") : namespace is already attached

This is resolved if I unload the namespace by - unloadNamespace("org.Hs.eg.db")

Is this by design or a bug?