[R] Boxplots by variable

[Felipe Carrillo]

Hi Vemuri:
is this what you want?

x <-  "oSO4   oNO3       mSO4       mNO3
3.3728 0.2110  1.9517421 1.01883602
0.8249 0.0697  1.5970292 0.11368781
0.2636 0.1004  0.6012445 0.24356332
8.0072 0.3443  6.1016998 3.63207149
13.5079 0.6593 12.4011068 1.55323386
6.1293 0.1989  5.7620926 0.12884845
0.6004 0.0661  0.7375408 0.17218600
0.6912 0.1672  1.1563314 0.13469750
1.0478 0.1504  1.5637809 0.99000758
0.4825 0.1160  0.2297545 0.08121805"
df <- read.table(textConnection(x),header=T)
attach(df)
df <- data.frame(oSO4,oNO3,mSO4,mNO3)
df
boxplot(df,col="limegreen")
# Or with ggplot2
library(ggplot2)
x <- melt(df)
x
boxPlots <- qplot(factor(variable),value,data=x,geom="boxplot",colour=I("magenta"),fill=I("lightgoldenrod"))
boxPlots


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


--- On Mon, 2/2/09, Vemuri, Aparna <avemuri at epri.com> wrote:

> From: Vemuri, Aparna <avemuri at epri.com>
> Subject: [R] Boxplots by variable
> To: r-help at r-project.org
> Date: Monday, February 2, 2009, 4:19 PM
> Dear R users,
> 
> I have a matrix "final" which looks like this:
> 
> final
>          oSO4   oNO3       mSO4       mNO3
>  [1,]  3.3728 0.2110  1.9517421 1.01883602
>  [2,]  0.8249 0.0697  1.5970292 0.11368781
>  [3,]  0.2636 0.1004  0.6012445 0.24356332
>  [4,]  8.0072 0.3443  6.1016998 3.63207149
>  [5,] 13.5079 0.6593 12.4011068 1.55323386
>  [6,]  6.1293 0.1989  5.7620926 0.12884845
>  [7,]  0.6004 0.0661  0.7375408 0.17218600
>  [8,]  0.6912 0.1672  1.1563314 0.13469750
>  [9,]  1.0478 0.1504  1.5637809 0.99000758
> [10,]  0.4825 0.1160  0.2297545 0.08121805
> 
> I would like to create boxplots for this matrix with data
> binned by
> oNO3, oSO4, mNO3 and mSO4, all in the same plot. 
> 
> I tried 
> boxplot(final), boxplot(final[,1]) etc. But all those
> commands create
> individual plots and not what I am trying to achieve. I was
> wondering if
> there is an R equivalent of the matlab command "hold
> on" or if there is
> a simpler way around this.
> 
> 
> 
> 	[[alternative HTML version deleted]]
> 
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