[R] Combine colors and shading lines

[Josh Roofchop]

I tried the "add=TRUE" but get
"Warning messages: 1: parameter "add" could not be set in high-level plot()
function"

Josh


HBaize wrote:
> 
> 
> Josh, 
> Check into "add=TRUE" :-)
> 
> All you need to do is insert "add=TRUE" to the second 
> chart to superimpose it on the first chart. You might also 
> consider making the second bar a different shade of color 
> rather than using shadding lines, then it would only be one 
> plot. 
> 
> data(HairEyeColor)
> a <- as.table( apply(HairEyeColor, c(1,2), sum) )
> a1<-a[1:2,]
> 
> barplot(a1,
>         type="n",
>        
> col=c("red","red","blue","blue","purple","purple","green","green"),
>         beside = TRUE )
> 
> barplot(a1,
> col=1,
> density=c(0,7,0,7,0,7,0,7),
>         beside = TRUE, add=TRUE )
> 
> 
> 
> Josh Roofchop wrote:
>> 
>> Hi, basically I am trying to create a grouped bar graph with each group a
>> different color and a bar in each group to have shading lines.  Basically
>> combine the 2 graphs created below.
>> Thanks,
>> Josh
>> 
>> data(HairEyeColor)
>> a <- as.table( apply(HairEyeColor, c(1,2), sum) )
>> a1<-a[1:2,]
>> 
>> par(mfcol=c(1,2), bg="white")
>> 
>> barplot(a1, 
>> 	type="n",
>> 	col=c(2,2,4,4,6,6,3,3),
>>         beside = TRUE, )
>> 
>> barplot(a1, 
>> col=1,
>> density=c(0,7,0,7,0,7,0,7),
>>         beside = TRUE, )
>> 
>>  http://www.nabble.com/file/p18033630/graph.JPG graph.JPG 
>> 
> 
> 

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