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Change-Point Analyzer Software
Version 2.3 for Windows 2000, XP, Vista and 7, including the 64-bit versions.
What is Change-Point Analyzer?
Change-Point Analyzer is a shareware software package for analyzing time ordered data to determine whether a change has taken place. It detects multiple changes and provides both confidence levels and confidence intervals for each change. The results are clearly displayed in table form and supplemented by easy to interpret plots. It can be used with all types of data: pass/fail, individual values, averages, ranges, standard deviations, normal, nonnormal and ill-behaved data like bioburden and particulate counts. It can be used to trend complaints, inventory turns, sales, particulate counts and just about anything else.
Change-Point Analyzer is simple to use, even for someone with no experience with control charting. It can be learned in about 15 minutes by following the tutorials provided below. It automatically verifies assumptions, checks for outliers and guides the user in handling such special cases. It even comes with a Excel Add-In making it possible to perform the analysis directly from Excel. For those in FDA regulated industries, it comes complete with a validation package.
Change-Point Analyzer is an important problem solving tool which can be used to complement real-time control charts. Analyzing control charting data using Change-Point Analyzer will help to better isolate the time of a change, help to identify more subtle changes missed by the control chart, and expose false detections.
When performing a one-time analysis on historical data, a change-point analysis is preferred to control charting, especially when you are dealing with large data sets. When performing such analyses, a change-point analysis has numerous advantages over a control chart.
Change-Point Analyzer was developed by Dr. Wayne Taylor. It utilizes state of the art techniques including CUSUM charts and bootstrap analysis.
Download Full Version of Software - Try Free for 30 Days
A full version of the software can be downloaded below. After installing you can use it for free for a 30-day trial. After 30 days, if you want to continue using the software, you must purchase it at a cost of US$80 ($86.40 for residents of Illinois). Click the button below to download the installation program. The file cpa12.exe will be downloaded. Running this file will install the software on your system including the tutorials.
Tutorials: To learn how to use Change-Point Analyzer and see examples of it in action, select any of the following. You must have a copy of the free Adobe Acrobat Reader® to view the files.
Technical Articles: For those who want to understand how Change-Point Analyzer works.
Articles Published by our Customers: See how change-point analysis is being used.
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Last modified: August 04, 2012