[R] R: Confidence Intervals for logistic regression

a closer look to the help on predict.glm will reveal that the function accepts a 'type' argument. In you case 'type = response' will give you the results in probabilities (that it seems to be what you are looking for). There also is an example on use of the 'type' argument at the end of the page.

[R] R: Function to check if a vector contains a given value?

?any any(x==2) Stefano -Messaggio originale- Da: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org]per conto di Dimitri Liakhovitski Inviato: mercoledì 23 settembre 2009 17.38 A: R-Help List Oggetto: [R] Function to check if a vector contains a given value? Dear R'rs,

[R] R: Deleting repeated rows

?unique as an example mat-matrix(c(1,2,3,1,1,2,1,2,3,4,7,5), ncol=3, byrow=T) mat #rows 1 and 3 are identical [,1] [,2] [,3] [1,]123 [2,]112 [3,]123 [4,]475 unique(mat) [,1] [,2] [,3] [1,]123 [2,]112 [3,]4

[R] R: Creating this vector, any suggetions?

try this a-c(1, 6, 8, 9) 1*(1:10 %in% a) [1] 1 0 0 0 0 1 0 1 1 0 Stefano -Messaggio originale- Da: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org]per conto di njhuang86 Inviato: Friday, June 12, 2009 4:45 PM A: r-help@r-project.org Oggetto: [R] Creating this

[R] R: Replace values according to conditions

A short way (not necessairly the best way), using the coercion from logical to numeric, could be: (mydata-as.data.frame(matrix(sample(1:9, 12, repl=T), ncol=4))) -1*(mydata =3) + (mydata =6) For the second question start here: help(Logic, package=base) Stefano -Messaggio