[R] Package VIF
Hi Could you perhaps possibly help me. I would like to use the package VIF but cannot get results I attach the .csv file and my R code. What do I have to do ? Any help is greatly appreciated. library(VIF) coal - read.csv(e:/freekvif/cqa1.csv,header=TRUE) y - as.numeric(coal$AI) x - as.matrix(cbind(coal$Gyp, coal$Pyrite, coal$Sid, coal$Calcite, coal$Dol, coal$Apatite, coal$Kaol, coal$Quartz, coal$Mica, coal$Micro, coal$Rutile)) myd -list(y=y,x=x) vif.sel - vif(myd$y, myd$x, subsize=11, trace=FALSE) vif.sel$select Response from R: logical(0) Thank you so much, Jacob __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Help needed with data format required for package VIF
Hallo Could somebody perhaps assist with my dilemma, Package: VIF. The examples are not very clear (data is stored internally). I wish to read a .csv file (header=TRUE) and run VIF. But I get nonsensical output. I have downloaded the boston.csv file (from the referring website). How do I run the example using this file format directly (say, using read.table ?? Any help is greatly appreciated. Regards Jacob __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Simulating distribution of max of two die
Hallo I am teaching a very elementary intro course about R, and want to show the students how to find the distribution of the maximum of rolling two balanced die. Is there perhaps a more elegant way to do this, other than the way I am using below? (I would like to show them two ways - the one shown here, and perhaps and improved/elegant approach (showing off the beauty of R. My code is as follows: R n - 2 R d1 - sample(1:6, n, replace=TRUE) R d2 - sample(1:6, n, replace=TRUE) R d - apply(matrix(c(d1,d2), nrow=n, byrow=TRUE), 1, max) R round(table(d)/n, 3) d 1 2 3 4 5 6 0.030 0.084 0.137 0.195 0.246 0.308 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
