[R] Finding the package providing funtion "%du%"

[Federico Calboli]

> On 30 Jun 2021, at 13:59, Eric Berger <ericjberger using gmail.com> wrote:
> 
> > ??'%du%'
> 
> shows it is in the igraph package (disjoint union)

damn, you are correct, I failed to load igraph itself before running the demo, hence why the demo did not find the function…

At least I can feel stupid in public on the r-help list! 

F 


> 
> 
> 
> On Wed, Jun 30, 2021 at 1:03 PM Federico Calboli <federico.calboli using kuleuven.be> wrote:
> Hello All,
> 
> I am playing with igraph (which seems to work for what I have used it).  Nevetheless:
> 
> demo('community', package="igraph")
> 
> 
> 
>         demo(community)
>         ---- ~~~~~~~~~
> 
> Type  <Return>   to start : 
> 
> > pause <- function() {}
> 
> > ### A modular graph has dense subgraphs
> > mod <- make_full_graph(10) %du% make_full_graph(10) %du% make_full_graph(10)
> Error in make_full_graph(10) %du% make_full_graph(10) %du% make_full_graph(10) : 
>  could not find function "%du%”
> 
> 
> For the life of mine I cannot find where %du5 is meant to come from.  Any clues?  also, any suggestion 9other than Google) to *efficiently* find whatever dependencies I might be missing?  I did install igraph with dependencies = T… but one never knows.
> 
> My: 
> > sessionInfo()
> R version 4.1.0 (2021-05-18)
> Platform: x86_64-apple-darwin17.0 (64-bit)
> Running under: macOS Mojave 10.14.6
> 
> Matrix products: default
> BLAS:   /Library/Frameworks/R.framework/Versions/4.1/Resources/lib/libRblas.dylib
> LAPACK: /Library/Frameworks/R.framework/Versions/4.1/Resources/lib/libRlapack.dylib
> 
> locale:
> [1] en_GB.UTF-8/en_GB.UTF-8/en_GB.UTF-8/C/en_GB.UTF-8/en_GB.UTF-8
> 
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base     
> 
> other attached packages:
> [1] dplyr_1.0.7    magrittr_2.0.1
> 
> loaded via a namespace (and not attached):
> [1] fansi_0.5.0      utf8_1.2.1       crayon_1.4.1     R6_2.5.0         lifecycle_1.0.0 pillar_1.6.1     rlang_0.4.11     vctrs_0.3.8      generics_0.1.0  
> [10] ellipsis_0.3.2   tools_4.1.0      glue_1.4.2       purrr_0.3.4      compiler_4.1.0   pkgconfig_2.0.3  tidyselect_1.1.1 tibble_3.1.2  
> 
> 
> 
> 
> 
> 
> 
> --
> Federico Calboli
> LBEG - Laboratory of Biodiversity and Evolutionary Genomics
> Charles Deberiotstraat 32 box 2439
> 3000 Leuven
> +32 16 32 87 67
> 
> 
> 
> 
> 
> ______________________________________________
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--
Federico Calboli
LBEG - Laboratory of Biodiversity and Evolutionary Genomics
Charles Deberiotstraat 32 box 2439
3000 Leuven
+32 16 32 87 67