20090224, 22:09  #1 
22650_{8} Posts 
Spearman's rank correlation coefficient
Hi. I am not Flatlander, I am a 10 year old. ;)
How did the constant '6' get into the formula? Last fiddled with by akruppa on 20090224 at 23:11 Reason: Note: post was in its own thread, I merged threads into one 
20090225, 04:58  #2  
"Mark"
Feb 2003
Sydney
3·191 Posts 
Spearman rank correlation coefficient
Quote:
A bit more detail: The Spearman rank correlation coefficient is just the more common Pearson (or productmoment) correlation coefficient, using the ranks of the data instead of the original data. Because the ranks are just the numbers 1 to n (if there are no ties) the formula can be simplified a lot, using mostly the formula for the sum of the numbers 1 to n & the formula for the sum of their squares. I hope that helps enough. (Probably broken rule 2 & given too much overt detail.) Anyway, feel free to ask for more. Moderators: I think this should be a separate thread, so we don't have statistics formula posts mixed in with comet ones. And our notFlatlander poster could more easily find it again, too. Last fiddled with by akruppa on 20090225 at 13:17 Reason: Moved posts into separate thread again, as requested 

20090303, 19:56  #3 
12005_{8} Posts 
Thank you.

Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
reduce number of coefficient for polynomial selection with msieve on GPU  aein  Factoring  3  20170225 16:42 
correlation between GPU utilisation and TF bitrange  mattmill30  GPU Computing  7  20161003 14:05 
ram, rank and AIDA64  mackerel  Hardware  2  20160404 21:36 
What is the Lowest Rank you can have  crash893  Data  7  20060126 05:26 
15k RANK  TTn  15k Search  0  20050508 02:13 