[R] error bars on line plot with error bars using ggplot

[S Ellison]

> I'm new to this and struggling away with ggplot.  I need to 
> plot some line graphs for about 4 series.  I have the values 
> to plot and also the value of the standard error  of the 
> value.  Is it possible to plot the standard error bars when 
> the value are already calculated as opposed to letting R do 
> the analysis to calculate the SE bars?
> 

Try googling 'error bars in ggplot'

I found a useful description at
http://wiki.stdout.org/rcookbook/Graphs/Plotting%20means%20and%20error%20bars%20%28ggplot2%29/

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