[x]
Posted via EE Mobile

Search, ask, and monitor your questions on the go with EE Mobile. Visit Experts Exchange from your mobile device and never be out of touch again.
06/26/2007 at 03:35PM PDT, ID: 22659915
[x]
Attachment Details
[x]
The Solution Rating System

With so many solutions, how can you tell which solutions are most likely to help you and which ones are not? To provide you with a tool to use, we rate our solutions based on various elements that most accurately determine if a solution is a quality solution. To explain what factors affect the solution rating, here are the elements we take into consideration when formulating our solution rating.

  • The Grade of the Solution
  • The Zone Rank of the Expert Providing the Solution
  • The Number of Author and Expert Comments
  • The Number of Experts Contributing
  • The Feedback of the Community

Your Input Matters
Because of the way the system is set up, the most important variable in this equation is you. As a member of Experts Exchange, you are able to cast your vote on the quality of the solutions in regard to how complete, accurate, helpful and easy to understand each solution is. When you provide your feedback, each rating is adjusted accordingly. So, if you see a solution that has a poor rating that you think is a good solution, let us know by rating it. As you do, the rating will be adjusted and will become more accurate for other members of our site.

If you have any suggestions that you would like to make for our rating system, please ask a question in the Suggestions Zone of Community Support.

Thank you!
6.4

Trend analysis

Asked by gregoryyoung in MS SQL Server, Math & Science

Tags: trend, analysis, sql

I have some stat based data in a table ... I would like to query for ranges in an attempt to do some correlation.

EX:
Table measurements
pkMeasurmentId int
Subject string
Time DateTime
Value double

All values are between 0 and 1

my data has dips and troughs ... I would like to narrow these dips and troughs and get there size ...

ex:
....
....
.... trend coming down
1:00 .23
1:02 .27
1:03 .25
1:05 .29
1:07 .28
1:08 .31
1:09 .35
1:11 .41
1:12 .42
1:13 .45
1:15 .48
1:17 .45
1:19 .44
1:20 .42
1:21 .43
1:23 .39
1:25 .37

what I want to query for here is my large points of change in directionality (1:00 and 1:15) ... Yes I know I could use max and min if I wanted to specify an appropriate time window but I dont want to do this I want to find multiples of these types of numbers in the set (i.e. there can be 3-4 directionality changes in the set).

I know how to do this in code on my own using curve fitting but figured there might be a way to do this in SQL? as the data is already in SQL this would be a bit easier than me reading it out and doing libear calculations on it. Suggestions for linear analysis are welcomed as well (hence put in the math section)
 
Keywords: Trend analysis
Title
1 Malaria and Excel! Chart all columns a…
 
Loading Advertisement...
 
[+][-]06/27/07 07:01 AM, ID: 19372303

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]06/29/07 10:16 PM, ID: 19394953

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]06/29/07 10:59 PM, ID: 19395002

Experts Exchange has a courteous staff of administrators who help members get the most out of the website by means of administrative comments like this one.

Start your 30-day free trial to view this Administrative Comment or ask the Experts your question.

 
[+][-]06/30/07 09:54 AM, ID: 19396406

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]07/06/07 01:37 AM, ID: 19430268

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]07/06/07 02:05 AM, ID: 19430349

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]07/06/07 02:07 AM, ID: 19430357

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]07/06/07 06:30 AM, ID: 19431591

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]07/06/07 10:13 AM, ID: 19433304

Experts Exchange has a courteous staff of administrators who help members get the most out of the website by means of administrative comments like this one.

Start your 30-day free trial to view this Administrative Comment or ask the Experts your question.

 
[+][-]07/06/07 04:21 PM, ID: 19435689

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]07/06/07 06:43 PM, ID: 19436071

Experts Exchange has a courteous staff of administrators who help members get the most out of the website by means of administrative comments like this one.

Start your 30-day free trial to view this Administrative Comment or ask the Experts your question.

 
[+][-]07/06/07 08:55 PM, ID: 19436284

At Experts Exchange, members can ask their questions to thousands of technology professionals, also known as Experts. Experts compete and collaborate to answer those questions by leaving comments like this one.

Start your 30-day free trial to view this Expert Comment or ask the Experts your question.

 
[+][-]07/06/07 10:24 PM, ID: 19436404

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

Start your 30-day free trial to view this Author Comment or ask the Experts your question.

 
[+][-]07/06/07 10:45 PM, ID: 19436439

View this solution now by starting your 30-day free trial. Setting up your free trial is quick, easy, and secure. We will return you to this solution, unlocked, when you're done.

 

About this solution

Zones: MS SQL Server, Math & Science
Tags: trend, analysis, sql
Sign Up Now!
Solution Provided By: harfang
Participating Experts: 3
Solution Grade: A
 
 
[+][-]07/06/07 10:58 PM, ID: 19436458

Experts Exchange has a courteous staff of administrators who help members get the most out of the website by means of administrative comments like this one.

Start your 30-day free trial to view this Administrative Comment or ask the Experts your question.

 
[+][-]09/01/08 02:53 PM, ID: 22363010

Experts Exchange has a courteous staff of administrators who help members get the most out of the website by means of administrative comments like this one.

Start your 30-day free trial to view this Administrative Comment or ask the Experts your question.

 
[+][-]09/05/08 09:47 PM, ID: 22406043

Experts Exchange has a courteous staff of administrators who help members get the most out of the website by means of administrative comments like this one.

Start your 30-day free trial to view this Administrative Comment or ask the Experts your question.

 
 
Loading Advertisement...
20091028-EE-VQP-88