[R] moving the x-axis in ggplot

2010-05-19 Thread Liam Blanckenberg
Dear all, I was wondering if there is an easy way to set the position of the x-axis in ggplot with respect to where it intercepts the y-axis? The default is for the x-axis to be positioned at the bottom of the chart, but I would like to force it to intercept at y = 0 (I have both positive and

[R] ggplot and scale_x_date

2010-04-20 Thread Liam Blanckenberg
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 =

[R] Help with lsei() from package limSolve()

2010-02-15 Thread Liam Blanckenberg
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

Re: [R] ggplot2 stacked line plot

2010-02-10 Thread Liam Blanckenberg
be less work...as in: library(ggplot2) data2 - ddply(data.set, .(Time), transform, Csum = cumsum(Value)) ggplot(data2, aes(x = Time, y = Csum, color = Type)) + geom_line() HTH, Dennis On Tue, Feb 9, 2010 at 8:43 PM, Liam Blanckenberg liam.blanckenb...@gmail.com wrote: Hi Hadley, Thank

Re: [R] ggplot2 stacked line plot

2010-02-09 Thread Liam Blanckenberg
is a little off.  You want: p - ggplot2(~, aes(x = ~, y = ~, colour = Type)) +  geom_area(aes(fill = Type), position = 'stack') Position isn't an aesthetic. Hadley On Sun, Feb 7, 2010 at 10:40 PM, Liam Blanckenberg liam.blanckenb...@gmail.com wrote: Hi all, I have been hunting around for hours

Re: [R] ggplot2 stacked line plot

2010-02-09 Thread Liam Blanckenberg
? Hadley On Tue, Feb 9, 2010 at 4:21 PM, Liam Blanckenberg liam.blanckenb...@gmail.com wrote: Hadley, Thanks for the pointing that error out to me. Unfortunately, revising my code to: p - ggplot2(~, aes(x = ~, y = ~, colour = Type)) + geom_line(aes(colour = Type), position = 'stack') still does

[R] ggplot2 stacked line plot

2010-02-07 Thread Liam Blanckenberg
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(~,

[R] odbcConnectExcel2007 connection error

2010-02-02 Thread Liam Blanckenberg
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