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Hi all, I have been hunting around for hours trying to figure out how to generate a stacked line chart using ggplot2. This type of chart can be generated in excel 2007 by selecting: Chart type > Line > Stacked line. I can generate a stacked area chart using the following code: p <- ggplot2(~, aes(x = ~, y = ~, colour = Type)) + geom_area(aes(position = 'stack', fill = Type))

Hi all, I have a question about setting arbitrary breaks/labels when using GGPLOT and date/time data on the x-axis. I want to specify the breaks/limits arbitrarily rather than using scale_x_date(major = 'blah'), much like when arbitrarily defining breaks/labels using scale_x_discrete(breaks = blah, labels = blah) I have tried variants such as: scale_x_date(major = seq(from =

Hi all, Apologies if I violate any posting etiquette - this is my first submission to the R mailing list. I regularly use 'odbcConnectExcel2007' (from package 'RODBC') to read data from named ranges in excel workbooks into R. I recently received the following error message when attempting to set up a connection channel (i.e. ch1 <- odbcConnectExcel2007('path to excel 2007

Hi all, The problem I am trying to solve is the following: I have a 'trace' of half-hourly data across an entire year - i.e. I have 17,500 observations (one for every half-hour of every day of a year). The data follows a daily, weekly and seasonal pattern that is important to preserve. What I want to do is scale this 'trace' of data in a way that minimizes distortion to the