search for: allposs

Displaying 3 results from an estimated 3 matches for "allposs".

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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 -- HS Albstadt-Sigmaringen WebMail (http://webmail.hs-albsig.de) -- HS Albstadt-Sigmaringen WebMail (http://webmail.hs...
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