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Questions tagged [tidygraph]

Tidygraph provides a tidy framework in R for all things relational (networks/graphs, trees, etc.). It is often used alongside ggraph.

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Reshaping a data frame with a list column produced by tidygraph

I am working with the tidygraph package and try to find a "tidy" solution for the example below. The problem is not really tied to tidygraph and more about data wrangling but I think it is interesting for people working with this package. In the…
Alex
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simplify tree removing nodes

I have a non-cyclical graph that can be considered a tree. Here's a simplified example: library(tidygraph) create_tree(20,2, directed = TRUE, mode="in") %>% plot The real-life example can be a little more complicated, as I may have multiple paths…
dmi3kno
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Propagate value from children with tidygraph

I have a tree annotated at genus level (ie each leaf has a name) and I want to propagate the color of the leaves in the branches/edges as long as the children have the same genus, like in this plot: Source My tree is here (sorry, dput doesn't…
abichat
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Error in tidygraph `as_tbl_graph` - mutliple logicals compared to single

I encountered an issue in the tidygraph package. Here is an example code: library(tidygraph) adj <- structure(c(0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, …
Moritz Schwarz
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R ggraph: how to plot bi-directional arrows in network?

I would like to do a network graph in R using ggraph where an an edge relationship goes both ways A -> B and B -> A. I would like top plot this with ggraph as a single bi-directional arrow? A solution on ggraph's Github issue is to use…
Matifou
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get the name of the leave connected for each node with tidygraphe

i have multiple trees (that are more path). so basicaly each node are connected with a direction to one path or none. i want to know for each of them the ultimate descendants ( that could be himself). i try to do it with tidygraph. demo_netw <-…
francois
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ggraph node color and legend not matching

This is my tidygraph object which I'm trying to plot hub_plot1 # A tbl_graph: 50 nodes and 540 edges # # An undirected simple graph with 2 components # # Node Data: 50 × 4 (active) name mod kme color 1…
PesKchan
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Fixed descending Tidygraph (igraph) position of nodes

I trying to learn tidygraph to illustrate relationships between employees and external entities (suppliers). The relationships could have multiple nodes, example: the employee owns a % of a company that owns a % of the supplier etc. With a sample…
Chamkrai
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Subset igraph plot in using activate function in R

I am trying to subset an igraph plot to display certain nodes based on a given vertex attribute. I have to subset them in the plot output to preserve the layout for the vertices. My code is the following: plot.igraph(graph, layout=lo,…
flâneur
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Plotting pi digits as connection bundles with ggraph

I'm looking to plot the digits of Pi as heirarchical edge bundles, as shown in this image Here, the digits of Pi are grouped by their colour, and then each digit has an edge drawn to the digit that follows it (i.e., if Pi is 3.141, then 3 would…
Conor Neilson
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all_simple_paths() in igraph in R is taking too much time

I am trying to solve a trip assignment problem (transport planning). Available data is this: trips between nodes and links shapefile with 'from' and 'to' (match with those in trips data) codes. The approach i am adopting is this: take each…
Satya Pamidi
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Label tree branches in tidygraph

I have a rooted forest with 116 trees as a tidygraph object. I now want to add a new property to the nodes, i.e. label the nodes within the branches. For instance, for a graph a <- tibble(from = c(1, 2, 3, 3, 4, 5, 7, 8, 8, 9, 10), to =…
Pascal
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Generating multiple network graphs with attributes from csv with ggraph, tidygraph in R

I have three csv files which looks like this: node <- data.frame( object = c("2-1887", "2-1887", "2-1887", "2-1887", "2-1887", "2-1887", "2-1887", "4-1889", "4-1889", "4-1889", "4-1889", "4-1889", "4-1889", "4-1889"), id = c(1, 2, 3, 4, 5, 6, 7, 1,…
HSJ
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How to speed up case_when/conditional mutate?

One can notice that case_when do not evaluate in the formula the subset of the tibble when condition is met, but the whole tibble, an example: picks = c(1:3) a = tibble(id = c(1:4), k = NA) a %>% mutate( k = case_when(id %in%…
GiulioGCantone
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Why does OD matrix in sfnetwork returns one NA in dimension names?

I have a rooted tree with spatially explicit edges representing a river network (new_net). I want to compute an origin-destination (OD) matrix to get the distances between multiple points representing small catchment outlets (1754 points) located on…
MerlinLutin
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