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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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Count edges of a given type for each node with tidygraph

Objective: I want to count the number of incoming edges of a partial type for each node. How can I do that? Criteria: I need to use the R package tidygraph Answers that allow me to mutate an existing graph via a magrittr pipeline are better Fewer…
Ian Cero
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Controling arc position (up or down) in linear ggraph arcplot

Background I have a network of nodes and edges which I would like to visualize as a linear arcplot. Based on my limited knowledge, I believe that {ggraph} is a good tool for this (especially given my familiarity with {ggplot2}) so that's what I'm…
Dan Adams
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Group ID for all edges between points using sfnetwork in r

I have a rooted tree with spatially explicit edges (ln_sfnetwork) with additional edges created by adding a point layer (pt). I would like to give all of the edges between each point on the network the same ID so I can calculate the total length of…
Josh J
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Define and categorise separate networks in R

I have an issue that I've been unable to optimise and I'm sure that either igraph or tidy graphs must hold this function already or there must be a better way to do this. I am using R and igraph to do this but possibly tidygraphs would also do the…
rwhit
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Adding spatially explicit edges to sfnetwork

I have an sfnetwork in R with spatially implicit edges. I would like to plot it using tmap, and therefore I would like to make the edges spatially explicit, by just turning them into lines. I created this monstrosity to do it edges <-…
Anaphory
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Map directed edge attribute to scale_edge_color_gradient aes in ggraph

I'm learning to use tidygraph and ggraph to plot social network data. I like it so far, but I can't figure out how to use color gradients to indicate edge direction while also mapping the color (that the gradient is based on) to an edge…
jmaec
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How to fix invalid vertex id error in tidygraph?

Data network_data <- list(nodes = structure(list(id = c(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14), label = c("2892056", "2894543", "2894544", "2894545", "2894546", "2894547", "2894548", "2894549", "2894550", "2894551", "2894552",…
user1828605
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Number of Connected Nodes in a dendrogram

Just started working with the tidygraph and ggraph packages recently and have a relatively simple problem, though, oddly, cannot seem to find an easy solution. Within a network, how many nodes are connected down from a single parent? Would seem to…
James Crumpler
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List to hierarchical graph

Is there an elegant way to convert an R list such as.. x = list( `People who` = list( `believe in aliens` = list( `believe aliens visit/visited Earth` = 5, `believe in aliens elsewhere in universe` = 45 ), `do not believe…
geotheory
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How to detach nodes and edge part of a tidygraph tibble into two separate pure tibbles

I have the following tidygraph tibble: rstat_nodes <- data.frame(name = c("Hadley", "David", "Romain", "Julia"), sex = c("M","M","M","F")) rstat_edges <- data.frame(from = c(1, 1, 1, 2, 3, 3, 4, 4, 4), to = c(2, 3, 4, 1,…
littleworth
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How to color edges according to node communities?

How can I add color information to edges in a tbl_graph ? I would like to color edges according to the color of the 'to' and 'from' nodes : if both nodes have the same color, then the edge between them should get the same…
user1788720
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How to get tree nodes to nest properly in tree.map

I am having trouble building a tree.map from parent/child grouped pairs. Here's my sample data: SubjectID <- c('101','101','101','102','103','103','103') parent <- c(1387, 1620, 1743,986,1623,1191,1450) child <- c(1620,1743,1859…
user2909302
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Creating a circular/concentric bipartite graph in r

SOLVED: see my solution, added at the bottom of the post. I am currently trying to create a circular bipartite graph using r, ideally with ggraph. I have a dataset of mating relationships between male and female frogs; here is a subset of that…
meganbarkdull
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Using tidygraph to derive nodes and graph-level metrics per group

I am trying out tidygraph on networks coming from different experimental treatments and am mostly interested to get out graph-wide metrics and potentially also node-level metrics. I can't seem to be able to get my head around the way tidygraph…
Lionel
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Tidygraph: calculate child summaries at parent level

using the tidygraph package in R, given a tree, I'd like to calculate the mean, sum, variance... of a value for each of the direct children of each node in the tree. My intuition is to use map_bfs_back_dbl or related and have tried modifying the…
schnee
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