My original data.table consists of three columns. site, observation_number and id. E.g. the following which is all the observations for id = z |site|observation_number|id |a | 1| z |b | 2| z |c ...

is there a way to set the resolution parameter when using the function cluster_louvain to detect communities in igraph for R? It makes a lot of difference for the result, as this parameter is relat...

When working with R I frequently get the error message "subscript out of bounds". For example: # Load necessary libraries and data library(igraph) library(NetData) data(kracknets, package = "NetDa...

When it comes to network analysis in R, I am a relatively familiar with igraph but not at all with sna. My question are: Are these two libraries compatible? i.e. Can I apply an operation from s...

I am using igraph in R for network analysis. I want to display an edge attribute on each line in the plot. An example is below df <- data.frame(a = c(0,1,2,3,4),b = c(3,4,5,6,7)) nod <- data...

My problem is very simple: I need to create an adjacency list/matrix from a list of edges. I have an edge list stored in a csv document with column1 = node1 and column2 = node2 and I would like t...

I have a data frame of 205,000+ rows formatted as follows: df <- data.frame(project.id = c('SP001', 'SP001', 'SP001', 'SP017', 'SP018', 'SP017'), supplier.id = c('1224', '5542', '7741', '1224'...

I am working with a graph that has 121 vertices and 209 edges and I am trying to remove from this graph vertices that satisfy two conditions: degree(my.graph)==0 the name of the vertex begins wi...

I am new to NetworkX. Right now, I manage to connect all the nodes to this particular node. What I want to do next it to make it interactive e.g. able to make each of the node move by dragging usin...

I am using the InfoMap algorithm in the igraph package to perform community detection on a directed and non-weighted graph (34943 vertices, 206366 edges). In the graph, vertices represent websites ...

I have an edgelist for a two mode network, similar to this: person Event Amy football_game Sam picnic Bob art_show I want to perform an analysis on this in R, but seemingly everything I try fail...