i have this data with me...i am only copying part of data here... date time "2011-05-23" "04:31:17" "2011-05-23" "04:31:20" "2011-05-23" "04:31:22" "2011-05-23" "04:31:25" "2011-05-23" "04:31:27" "2011-05-23" "04:31:18" "2011-05-23" "04:31:20" "2011-05-23" "04:31:22" "2011-05-23" "04:31:25" "2011-05-23" "04:31:27" "2011-05-23" "04:31:26" "2011-05-23" "04:31:28" "2011-05-28" "08:16:14" "2011-05-28" "08:16:58" "2011-05-28" "08:16:22" "2011-05-28" "08:16:24" "2011-05-28" "08:16:27" "2011-05-28" "08:16:29" "2011-05-28" "08:16:32" "2011-05-28" "08:16:19" "2011-05-28" "08:16:21" "2011-05-28" "08:16:24" "2011-05-28" "08:16:26" and other data hours.1 -[1] 4.5 3.4 hours.1 data is the total no.of hours of data on those particular dates. i have the data on 2011-05-23 for 4.5 hours and data on 2011-05-28 for 3.4 hours. for representing the count data using gglots i am using the following command ggplot(dat,aes(factor(date))+ geom_bar(position="dodge"). now i am looking for representing the normalized data. i want to represent the table(data)/hours.1 output with ggplot. i can use the barplot function, but the graphics are good in and labeling x-axis is easy in ggplots. i would appreciate if someone can reply asap.. thank you .. -- View this message in context: http://r.789695.n4.nabble.com/gplot-data-manipulation-question-tp3772664p3772664.html Sent from the R help mailing list archive at Nabble.com.