Julius Vainora questions

Julius Vainora answers

• More efficient way to run a random walk on a transition matrix than the igraph::random_walk()
• What is the measure of how well a data *centered* to the prediction line in LM
• Extract and add to the data values of the probability density function based on a stan linear model
• How to vectorize extracting significant predictor variables?
• How to count number of TRUE values in a logical vector before FALSE
• Calculate probability of observing sequence using markovchain package
• modelling an infinite series in R
• Heteroscedastic residuals plot not matching plot shown in Pinhiero and Bates
• R: replace values in data frame with respect to NAs as placeholders
• Error message in nlme example present in R but not in S