Comments on: T-SQL thoughts about the 95th percentile

By: Perastikos

Perastikos — Thu, 04 Feb 2016 10:28:53 +0000

Hello again, i run the code from second last picture, i have those two values in my table,
5.04799 and 6.11519
i want to take 90% and 10% percentile of these values, when i run the code twice for 90% and 10% i take exactly the same values in rangetop :
5.17092
in excel i take for 90% : 6% and 10% : 5%
any help?

By: Rob Farley

Rob Farley — Thu, 04 Feb 2016 01:54:36 +0000

Use the second-last one, and change the 0.975 value to whatever you want.

By: Perastikos

Perastikos — Wed, 03 Feb 2016 16:10:26 +0000

Sorry i gou confused,
i have table with these values
2.56280
0.10534
and i want to take percentile of 90 of these values, which picture of your code should i execute?
i want to manage same think like excel, that uses this formula :
PERCENTILE(A2:A4;J2)

By: Rob Farley

Rob Farley — Wed, 03 Feb 2016 16:08:12 +0000

Yes, Perastikos, I am.

By: Perastikos

Perastikos — Wed, 03 Feb 2016 16:03:38 +0000

Mr. Rod are u answering to me?

By: Rob Farley

Rob Farley — Wed, 03 Feb 2016 15:53:39 +0000

Then change the .975 to .99

By: Perastikos

Perastikos — Wed, 03 Feb 2016 15:39:51 +0000

Hello guys, that looks really interesting
my question is , if i want to use the final percentile function which part of code should i use?
thanks in advanced

By: Ara

Ara — Thu, 08 Aug 2013 23:42:54 +0000

This is very useful.
Many thanks.

By: Lars Hammarberg

Lars Hammarberg — Mon, 29 Aug 2011 22:20:47 +0000

"95% of statisticians may be offended at this post"
Hilarious! Thank you!
/Lars H

By: Rob Farley

Rob Farley — Thu, 25 Aug 2011 18:20:19 +0000

Yes, that’s the algorithm I applied here. But you have to make sure you subtract one and add it back again afterwards, because if you have just two numbers, you have one range between those two. Your point should be 1.95 not 1.9.
Rob