### Install tidygraph from CRAN

Source: https://github.com/thomasp85/tidygraph/blob/main/README.md

Standard installation of the tidygraph package from CRAN.

```r
install.packages('tidygraph')
```

--------------------------------

### Install tidygraph using pak

Source: https://github.com/thomasp85/tidygraph/blob/main/README.md

Install the tidygraph package from GitHub using the pak package manager. Ensure 'pak' is installed first.

```r
install.packages('pak')
pak::pak('thomasp85/tidygraph')
```

--------------------------------

### Install tidygraph Development Version

Source: https://github.com/thomasp85/tidygraph/blob/main/README.md

Installation of the development version of the tidygraph package from GitHub using the devtools package.

```r
devtools::install_github('thomasp85/tidygraph')
```

--------------------------------

### Activate Nodes and Calculate Centrality

Source: https://github.com/thomasp85/tidygraph/blob/main/README.md

This snippet demonstrates activating the nodes of a graph, calculating node degree centrality, and then activating edges to calculate edge betweenness centrality. The results are then arranged by centrality.

```r
library(tidygraph)

play_gnp(10, 0.5) %>%
  activate(nodes) %>%
  mutate(degree = centrality_degree()) %>%
  activate(edges) %>%
  mutate(centrality = centrality_edge_betweenness()) %>%
  arrange(centrality)
```

--------------------------------

### R Package Dependency Error (numbat Devel)

Source: https://github.com/thomasp85/tidygraph/blob/main/revdep/failures.md

This R output indicates a dependency check failure for the 'numbat' package in its development version. It lists 'ggtree' and 'scistreer' as required but unavailable packages.

```R
* using log directory ‘/tmp/workdir/numbat/new/numbat.Rcheck’
* using R version 4.1.1 (2021-08-10)
* using platform: x86_64-pc-linux-gnu (64-bit)
* using session charset: UTF-8
* using option ‘--no-manual’
* checking for file ‘numbat/DESCRIPTION’ ... OK
* this is package ‘numbat’ version ‘1.3.2-1’
* package encoding: UTF-8
* checking package namespace information ... OK
* checking package dependencies ... ERROR
Packages required but not available: 'ggtree', 'scistreer'

See section ‘The DESCRIPTION file’ in the ‘Writing R Extensions’
manual.
* DONE
Status: 1 ERROR





```

--------------------------------

### R Package Dependency Error (numbat CRAN)

Source: https://github.com/thomasp85/tidygraph/blob/main/revdep/failures.md

This R output shows a dependency check failure for the 'numbat' package from CRAN. Similar to the devel version, it flags 'ggtree' and 'scistreer' as missing dependencies.

```R
* using log directory ‘/tmp/workdir/numbat/old/numbat.Rcheck’
* using R version 4.1.1 (2021-08-10)
* using platform: x86_64-pc-linux-gnu (64-bit)
* using session charset: UTF-8
* using option ‘--no-manual’
* checking for file ‘numbat/DESCRIPTION’ ... OK
* this is package ‘numbat’ version ‘1.3.2-1’
* package encoding: UTF-8
* checking package namespace information ... OK
* checking package dependencies ... ERROR
Packages required but not available: 'ggtree', 'scistreer'

See section ‘The DESCRIPTION file’ in the ‘Writing R Extensions’
manual.
* DONE
Status: 1 ERROR





```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.