Displaying 3 results from an estimated 3 matches for "allposs".
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allpass
2007 Oct 03
2
Shading area under density curves
Hello,
I have a question regarding shading regions under curves to display
95% confidence intervals. I generated bootstrap results for the slope
and intercept of a simple linear regression model using the following
code (borrowed from JJ Faraway 2005):
> attach(allposs.nine.d)
> x<-model.matrix(~log(d.dist,10))[,-1]
> bcoef<-matrix(0,1000,2)
> for(i in 1:1000){
+ newy<-predict(all.d.nine.lm)+residuals(all.d.nine.lm)[sample(1002,rep=TRUE)]
+ brg<-lm(newy~x)
+ bcoef[i,]<-brg$coef
+ }
Where "allposs.nine.d" is a data file composed...
2006 Feb 27
1
4D stacked column chart, Excel -> R
...<- gw.faelle(gwx)
k3d <- scatterplot3d(x, type = "h", angle = 55, scale.y = 0.7, pch = 16, main = "GWK" )
Error in segments(x, z, x, z2, col = col, cex = cex.symbols, ...) :
仩仩仩仩仩仩仩 invalid color specification
Do you have an idea how I can accomplish this task? Is it at allpossible to do that with scatterplot and some low level functions orshall I look at other packages and functions?
Thanks in advance for any help and ideas!
Best regards,
Michael
仩
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2012 Apr 13
3
A little exercise in R!
Greetings all!
A recent news item got me thinking that a problem stated
therein could provide a teasing little exercise in R
programming.
http://www.bbc.co.uk/news/uk-england-cambridgeshire-17680326
Cambridge University hosts first European 'maths Olympiad'
for girls
The first European girls-only "mathematical Olympiad"
competition is being hosted by Cambridge