On 05/29/2010 10:11 PM, dunner wrote:
... Perhaps "apply" simply doesn't deal with the colname and I have
to try a completely different method? Or will apply pass enough information
to the included function (mtab.norm) to allow me to annotate the plot?
It doesn't seem to, as I tried this on a d
Hi Dunner,
The way I usually resolve this is by extracting the names with
colnames
and then reinsert them to the new object.
BTW, why are you trying to reproduce the image from minitab? what features
in it do you find useful ?
Best,
Tal
Contact
Details:-
On May 29, 2010, at 8:11 AM, dunner wrote:
Thanks to both of you,
I used the below code instead, which has been cleaned and pruned a
little.
It produces a trellis of qq plots with the proper annotations as per
Minitab
from a dataframe passed to mtab.matrix(). However, I can't get
indivi
Thanks to both of you,
I used the below code instead, which has been cleaned and pruned a little.
It produces a trellis of qq plots with the proper annotations as per Minitab
from a dataframe passed to mtab.matrix(). However, I can't get individual
variable names (these are column names in the pa
On 05/29/2010 07:39 PM, dunner wrote:
I have written a function to emulate minitab's QQ plotting output (with SW
test and AD test results on the graph):
...
However, I get the following message when I try to apply it:
ab<-rnorm(1:100, 2)
aa<-log(ab)
Warning message:
In log(ab) : NaNs produce
Two things:
1) doing log on rnorm, will get you NaN's because you are doing log on a
negative number (some of the time).
2) Running
> traceback()
5: sort(y)
4: qqplot(x, pch = 16, cex = pt.ht, col = palette()[c(1, 2)], xlab =
paste(colnames(x)),
ylab = "Normal Quantile-Quantile Plot", main
I have written a function to emulate minitab's QQ plotting output (with SW
test and AD test results on the graph):
mtab.norm<-function(x)
{ library(nortest)
library(lattice)
x<-as.numeric(x)
x<-as.vector(x)
plot.ht<-4.6
plot.wd<-4.6
pt.ht=plot.ht/5
txt.sz<-(plot.ht/7.5)
X11(width=plot.wd, height=
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