SEMson questions

• How to use group_by() and do() in dplyr to apply a function for each factor level
• Problems using dplyr in a function (group_by)
• Use dplyr to truncate top and bottom percentiles of a numeric variable
• What´s the best way to do a correlation-matrix plot like this?
• rmarkdown error "attempt to use zero-length variable name"
• How can I save a list to a file and read it in again (in R)?

SEMson answers