see if this helps:
library(actuar) data(gdental) # grouped data quantile(gdental) mean(gdental) Nuri On Wed, 8 May 2013, jpm miao wrote:
Is there a function in R that calculate the mean and median for a grouped data? For example, a survey shows the oil price outlook in the future. How can I calculate the mean/median? (Of course, I understand that the groups "below 80" and "above 110" must be defined more specifically) below 80 4 80-90 5 90-100 8 100-110 7 above 110 3 [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.