G5W questions

G5W answers

• R: combine two 2-dimensional crosstabs
• why does `as.numeric` of a character with decimals add additional numbers [duplicate]
• "sna" or "igraph" : Why do I get different degree values for undirected graph?
• How to solve "non-numeric argument.." error in numerical integration?
• Order vertices within layers on tripartite igraph
• What is wrong with this date and time?
• Adding a legend to a plot
• Quickly calculate the number of shared neighbor between any pair of nodes from an adjacency matrix
• regex replace parts/groups of a string in R
• Summarizing data in table by group for each variable in r