Re: [R] Error in apply(x2, 1, diff) : dim(X) must have a positive length

Thanks. I use the bootstrap() function from the bootstrap package. Let me try it again to see if I get any luck :) -- View this message in context: http://r.789695.n4.nabble.com/Error-in-apply-x2-1-diff-dim-X-must-have-a-positive-length-tp4382435p4384608.html Sent from the R help mailing list ar

Re: [R] Error in apply(x2, 1, diff) : dim(X) must have a positive length

Thank you for your help, David. I was trying to run bootrapping on the dataset "shoes" from MASS package. But I still have some problem here. > as.matrix(data.frame(shoes),nrows=10,ncols=2,byrow=T) A B [1,] 13.2 14.0 [2,] 8.2 8.8 [3,] 10.9 11.2 [4,] 14.3 14.2 [5,] 10.7 11.8 [6,] 6.6 6.4 [7,] 9.5 9

[R] Error in apply(x2, 1, diff) : dim(X) must have a positive length

Anyone knows hat might be the cause of this error? Thanks for any help! >library(MASS) > dif.mns = function(x2,tr1=.2,tr2=.3){ + #generates four different 'means' using + #difference scores from x2, an n x 2 matrix + #for use w/ bootstrap comparisons + diffs = apply(x2,1,diff) + mn1=m

Re: [R] How to have columns lined up?

Thanks a lot, David. Uh...this is not really an R question, but I couldn't find answer nowhere... -- View this message in context: http://r.789695.n4.nabble.com/How-to-have-columns-lined-up-tp4367928p4369262.html Sent from the R help mailing list archive at Nabble.com. _

[R] How to have columns lined up?

Hi there, Everytime when I paste My R output in WORD, the columns couldn't line up nicely like they appear in R console. Is there a way to fix this problem? Thanks for any help! time n.risk n.event survival std.err lower 95% CI upper 95% CI 6 21 30.857 0.07640.707