user969113 questions

• R matrix plot with colour threshold and grid
• Collapse runs of consecutive numbers to ranges
• Vertical lines between points with ggplot2
• Split data.frame by value
• Split vector randomly into two sets
• ggplot wrong color assignment
• R - Add values to data frame matching a certain criteria
• ggplot2 facet_grid arrange panels
• Match values in data frame with values in another data frame and replace former with a corresponding pattern from the other data frame
• R function prcomp fails with NA's values even though NA's are allowed

user969113 answers