On 5/16/2015 12:32 PM, li li wrote:
Hi all,
I wrote the following code and have two questions:
(1) As you can see, I would like different colors for different
types. It does not come out that way in the graph from this code.
Anyone know how to fix this?
(2) How do I made the lots number on x axis eligible to read?
(3) How do I remove the verticle line in the graph.
Thanks for your help.
Hanna
lot <- as.character(c("D1300000" ,"D1300005" ,"D1300010", "D1300015",
"D1300020",
"D1300025" ,"D1300030" ,"D1300035", "D1300040", "D1300045",
"D1300000" ,"D1300005" ,"D1300010", "D1300015", "D1300020",
"D1300025" ,"D1300030" ,"D1300035", "D1300040", "D1300045",
"D1300000" ,"D1300005" ,"D1300010", "D1300015", "D1300020",
"D1300025" ,"D1300030" ,"D1300035", "D1300040", "D1300045"))
val <- rnorm(30)
type <- rep(1:3,each=10)
tmp <- as.data.frame(cbind(val, type, lot))
tmp$sybm <- rep(c(1, 12, 16), each=10)
tmp$color <- rep(c("blue", "red", "green"), each=10)
tmp$val <- as.numeric(tmp$val)
dotplot(val ~ lot, tmp,
ylab = "values", xlab="lot", aspect=1,
pch=tmp$sybm, color=tmp$color)
Li Li,
1. if the dotplot function you are referring to is from the lattice
package, then the correct name for the "color" parameter is col. You
could just use col=type to get different colors but you won't have
control over the colors chosen. I created a vector, color, specifying
the colors and the order they will be applied.
2. the scales parameter is what you are looking for. The parameter is
looking for a list which consists of name=value pairs. You can rotate
the labels by a specified number of degrees. In my example, I chose 30
degrees, rot=30.
3. I don't know how to eliminate the vertical lines, but if you read the
lattice documentation, you will find it (if it is possible).
color=c("blue", "red", "green")
dotplot(val ~ lot, tmp,
ylab = "values", xlab="lot", scales=list(rot=30), aspect=1,
pch=tmp$sybm, col=color)
Hope this is helpful,
Dan
--
Daniel Nordlund
Bothell, WA USA
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