upabove questions

• Sort rows of matrix according to number of different digits
• apply which.max to second, third, etc. highest value
• Generating undirected network with pre-specified degree distribution without any self loops
• Mean of each element of a list of matrices
• Select a subset of lists from list of lists
• Add horizontal line to ggplot() for specified interval of x axis
• Ifelse() with three conditions

upabove answers