[R] Adding vertical line to histogram and qplot "stacked" plot

[Felipe Carrillo]

Jason:
Check Hadley's page, there's a few examples there. Good luck

http://had.co.nz/ggplot2/geom_vline.html

Felipe D. Carrillo  
Supervisory Fishery Biologist  
Department of the Interior  
US Fish & Wildlife Service  
California, USA


--- On Thu, 1/29/09, Jason Rupert <jasonkrupert at yahoo.com> wrote:

> From: Jason Rupert <jasonkrupert at yahoo.com>
> Subject: [R] Adding vertical line to histogram and qplot "stacked" plot
> To: R-help at r-project.org
> Date: Thursday, January 29, 2009, 11:03 AM
> R-users it appears I am leaning on your knowledge once
> again.  Is there any way to add a vertical line to a
> histogram and qplot "stacked" plot?  Here is my
> current attempt:
>  
> "qplot" approach attempt:
> qplot(Run, data = data_dataframe, breaks = breaks, fill =
> Temperature, main = short_title)
> + scale_x_continuous("Data") +
> scale_y_continuous("Freq")
> +  scale_fill_discrete("Temperature") +
> scale_fill_manual(values = c(LOW = "blue", AMB
> ="black", HIGH = "red")) + 
> geom_abline(v = HighVal, col = "dodgerblue3",
> lty="dotdash") 
>  
>  
> "hist" approach attempt:
> hist(data_dataframe, breaks = breaks,  col =
> "dodgerblue3", xlab="Data", freq = TRUE,
> main="") +abline(v = HighVal, col =
> "dodgerblue3", lty="dotdash")   
>  
> Neither seem to be working.  I think I am missing
> something small to get this to work.  
>  
> Thank you again for any feedback you can provide. 
> 
> 
>       
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> 
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