search for: rating_mean

...11.15 February         BBB            11.13 January          CCC            17.13 ............................................. ............................................ December       CCC           17.56 and so on. My objective is to calculate Rating-wise mean rate, for which I have used rating_mean = tapply(rate, rating, mean) and I am getting following output > tapply(rate, rating, mean)       AAA           BBB                      CCC        9.1104       11.1361637            17.1606779 which is correct when compared with an excel output. However, I wish to have my output something...

I'm an R newbie but recently discovered the ggplot2 and reshape packages which seem incredibly useful and much easier to use for a beginner. Using the data from the IMDB, I'm trying to see how the average movie rating varies by year. Here is what my data looks like: > ratings <- read.delim("groomed.list", header = TRUE, sep = "|", comment.char = "")