Hi all: Using the example below, is there a way to add Y axis titles to each graphic instead of sharing the same title?
library(ggplot2) RT = matrix(c(814, 500, 424, 394, 967, 574, 472, 446),4,2) colnames(RT) = c('repetition','alternation') rownames(RT) = c('7-yrs','11-yrs','15-yrs','21-yrs') rt <- melt(RT) names(rt) <- c("age", "trt", "value") rt$variable <- "rt" #this next block was missing in Hadley's previous example error = matrix(c(10,6,6,4,13,7,6,3),4,2) colnames(error) = c('repetition','alternation') rownames(error) = c('7-yrs','11-yrs','15-yrs','21-yrs') errors <- melt(error) names(errors) <- c("age", "trt", "value") errors$variable <- "error" df <- rbind(rt, errors) # Make sure factors are ordered correctly df$age <- factor(df$age, levels = c("7-yrs", "11-yrs", "15-yrs", "21-yrs")) # Which results in: structure(list(age = structure(c(1L, 2L, 3L, 4L, 1L, 2L, 3L, 4L, 1L, 2L, 3L, 4L, 1L, 2L, 3L, 4L), .Label = c("7-yrs", "11-yrs", "15-yrs", "21-yrs"), class = "factor"), trt = structure(c(2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L), .Label = c("alternation", "repetition"), class = "factor"), value = c(814, 500, 424, 394, 967, 574, 472, 446, 10, 6, 6, 4, 13, 7, 6, 3), variable = c("rt", "rt", "rt", "rt", "rt", "rt", "rt", "rt", "error", "error", "error", "error", "error", "error", "error", "error")), .Names = c("age", "trt", "value", "variable"), row.names = c(NA, 16L), class = "data.frame") # It's now straightforward to create recreate the plot with lines # or with bars: plot <- ggplot(df, aes(x=age, y=value, colour = trt, fill = trt)) + facet_grid(variable ~ . , scale = "free") plot + geom_bar(position = "dodge") + geom_line(aes(group = trt)) + geom_point() Felipe D. Carrillo Supervisory Fishery Biologist Department of the Interior US Fish & Wildlife Service California, USA ______________________________________________ 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.