When trying to generate colors or change the weight of edges when using igraph I’m generating the error “length of NULL cannot be changed.”
Specifically when running these codes:
colrs <- c("skyblue", "orchid2", "peachpuff")
V(net)$color <- colrs[V(net)$source]
I get:
Warning message:
In length(vattrs[[name]]) <- vc : length of NULL cannot be changed
When I run the code:
E(net)$width <- E(net)$weight/6
I get the same error. Has anyone gotten similar errors and know what to do with them in this context? Thank you