MATLAB Answers

What's wrong with tied ranks?

1 view (last 30 days)
Antonio Trujillo-Ortiz
Antonio Trujillo-Ortiz on 4 Feb 2016
Answered: dpb on 4 Feb 2016
Hi all,
If you have the data vector:
A=[ -2.4 -7.4 -1.4 -0.4 0.6 -6.8 -5.8 -4.8 -4.8 -3.8 -5.0 -4.0 -5.0 -6.0 -6.0 -5.4 -3.4 -4.4 0.6 1.6];
Why when you call the function t=tiedrank(A) you get t=[15 1 16 17 18 2 5 9.5 9.5 13 7.5 12 7.5 3.5 3.5 6 14 11 19 20];
instead, t=[15 1 16 17 18.5 2 5 9.5 9.5 13 7.5 12 7.5 3.5 3.5 6 14 11 19 20]; ?
Notice the problem with the ordered value 0.6
I would appreciate any hint on this. Thx.
  1 Comment
Antonio Trujillo-Ortiz
Antonio Trujillo-Ortiz on 4 Feb 2016
Sorry. I make a transcript mistake. Last vector must said,
instead, t=[15 1 16 17 18.5 2 5 9.5 9.5 13 7.5 12 7.5 3.5 3.5 6 14 11 18.5 20]; ?
Thx again.

Sign in to comment.

Answers (1)

dpb
dpb on 4 Feb 2016
Answered in identical thread on newsgroup...short story is your two 0.6 values are similar-enough to print out the same to precision in command window but aren't identically equal.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!