How to tell if a point has been colored twice in R?
This is a follow-up question from my previous question Assign Random Colors in R
Adding edge to an `igraph` in `R`
There are a few similar posts (like this one and this too), but my question might be more basic for the igraph package functionality.
Smallest Circle Containing Half the World’s Population
I was reading about this over here: https://en.wikipedia.org/wiki/Valeriepieris_circle . This is a problem where the task is to find the smallest possible circle that contains half of the world’s population. I am trying to replicate this task myself as a learning exercise.
Adding edge weights to igraph from an adjacency matrix
Given a unipartite igraph object G and an adjacency matrix attrib containing an edge attribute for only some of the edges in G, what is the most efficient way to add the attributes to G.
Why is E(g) not identical to itself
Consider:
How to tell if a graph belongs to TREE(N)?
I wrote this R code that randomly generates 25 graphs (each graph is made with a random number of vertices):
How to find all connected vertex starting from root, but in the order from most inner one to most outer one?
Let’s say I have a data as below:
Conditional labeling vertices in a graph’s connected component – igraph R
I have a connected component in a graph and I need to convert it into a data frame. Each vertex should be assigned a unique label based on its position or path within the graph. For instance, vertices A1 to A3 should share the label A, and vertices C1 to C3 should share the label C. The criteria for labelling is that the path terminates either before a vertex with two incoming edges or at a vertex with two outgoing edges. The images also the expected number of labels, i.e., 7.