Julius Vainora questions

Julius Vainora answers

• 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
• how to keep rows based on first digit of elements in r ?
• Use of which and %in% when no items of a vector match [duplicate]
• How to use str_split with regex in R?