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I am attempting to graph 12 months of temperatures, delineate the months with a vline and place the names of the months at the top of the graph. So far I have gotten everything to work except the names, despite getting a similar graph to work yesterday the day before yesterday with Baptise A's help. Can anyone suggest what I am doing wrong. Data set is below code. Thanks. Code ========================================================================= line.count <- c(1,cumsum(as.vector((table(year$monthnum))))) namposts <- line.count[1:12] temprange <- range(year[,4],...