Gabor, Bill,
On 2011-09-27 02:51, Gabor Grothendieck wrote:
On Mon, Sep 26, 2011 at 12:11 PM, Philip Rhoades <p...@pricom.com.au>
wrote:
Gabor,
On 2011-09-27 00:35, Gabor Grothendieck wrote:
On Mon, Sep 26, 2011 at 9:56 AM, Philip Rhoades
<p...@pricom.com.au>
wrote:
People,
It appears that there is no way of getting Boxplots to plot using
Mean,
SD,
Max & Min - is there something else that would do what I want? I
couldn't
find it . .
Try replacing the stats component of boxplot's output with your
desired statistics and then feeding that into the lower level bxp
function to do the graphics:
bp <- boxplot(Nile, plot = FALSE)
bp$stats <- matrix(c(min(Nile), mean(Nile) + c(-1, 0, 1) *
sd(Nile),
max(Nile)))
bxp(bp)
Thanks for that! What is the syntax when there is more than one set
of data
(ie a two dimensional vector)? I tried messing around with stuff
like:
mean(Nile[,2] etc
but I get subscript out of range errors . .
Bill's example shows how to do it with a list of numeric vectors.
Here is another example using the built in anscombe and making use of
my prior code, Bill's and Vining's:
bp <- boxplot(anscombe, plot = FALSE)
bp$stats <- sapply(anscombe, function(x) c(min(x), mean(x) + c(-1, 0,
1) * sd(x), max(x)))
bxp(bp, outline = FALSE)
Interesting! - I've learnt something about anscombe and sapply and
other stuff (thanks again!) but I think I mis-spoke before. I think
what I want is a list of numeric vectors but when I created tarr:
tarr <- array( dim = c( 5,3 ), c( 1,2,3,4,5,2,3,4,5,6,3,4,5,6,7 ) )
I couldn't get it to work with the original code . . now I have had a
closer look at Bill's code . .
On the original question though, why isn't there something "off the
shelf" that will do what I want? Surely, a "boxplot" using mean, SD,
max and min would be a common enough need to justify it?
Thanks,
Phil.
--
Philip Rhoades
GPO Box 3411
Sydney NSW 2001
Australia
E-mail: p...@pricom.com.au
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