STATISTICA Receives Reader's Choice Award for QA/QC software from Scientific Computing and Instrumentation
Scientific Computing and Instrumentation readers recently voted STATISTICA number one in the QA/QC Software category. This is the fourth year in a row STATISTICA has received high marks from Scientific Computing and Instrumentation readers for its comprehensive array of statistical techniques, analytical power, and user-friendly, customizable interface. STATISTICA has received the highest rating in EVERY comparative review of statistical software since its first release in 1993.

STATISTICA Enterprise/QC Receives Top-Notch Real-world Review from VISTEON Automotive in the Popular French Magazine QUALITE REFERENCES
VISTEON, one of the world's largest suppliers of automotive components and systems, gave rave reviews to STATISTICA Enterprise/QC in a recent issue of the popular French magazine, QUALITE REFERENCES. VISTEON representatives claimed "STATISTICA Enterprise/QC is actually only limited by our imagination." In the process of redesigning their SPC system and preparing for QS 9000 certification, they chose the STATISTICA/STATISTICA Enterprise/QC system for a variety of reasons discussed in the article: "STATISTICA Enterprise/QC is really flexible, and we could perfectly match the software to our current system, in a very easy and quick way: each entry is customizable (operator's name, lot number) which allows for very detailed analyses of the process variations. The extensive tools that are offered in STATISTICA Enterprise/QC (DOE, multivariate analyses) was also an important aspect of our choice." VISTEON is clearly more than pleased with their choice, saying "As of today, our system grows very quickly, and is not limited by our software."

StatSoft Brasil Ltda. Donates $100,000 to the Universidade Federal de Sao Carlos
StatSoft Brasil Ltda. was recently applauded for its donation of approximately $100,000 (U.S.) in statistical software to Universidade Federal de Sao Carlos (UFSCar). STATISTICA's impressive graphical interface, ease of use, and comprehensive set of analyses first prompted the university to request a donation from StatSoft. According to one university representative, they received much more than they expected as a result of their request. Now, undergraduate and graduate students of statistics, engineering, chemistry and physics will enjoy more than 26 basic and advanced modules in the award-winning STATISTICA, including: design of experiments, neural networks and fuzzy logic, and many more.

Click here to view other STATISTICA awards, comments from users, and a complete summary of STATISTICA's unmatched record of reviews.





SISQUAL 2000 - 7th Exhibit for Quality and Management Solutions
Paris, France - Paris Expo - Porte de Versailles
September 19 - 21, 2000
Hall 5

Fall Technical Conference - Statistical Thinking, Statistical Methods and Quality Standards
Minneapolis, Minnesota, USA - Marriot City Center
October 12-13, 2000
to be announced

MTQ - 8th Trade Fair for QA Systems
Germany Westfalenhallen Dortmund
November 21-24, 2000
Hall 4, Booth 4236

Click here to view 2001 exhibits.

StatSoft offers both introductory and advanced training courses in major cities in the United States and overseas. StatSoft's training classes offer:

Click here for 2001 training dates, or to search by course or by city.

Placing an Overlay over a Scatterplot
Question: How can I place an 'overlay' over scatterplot? This overlay will consist of three parallel lines of set slope and intercept.
Answer: There are two ways to achieve this. First, you can insert an object (i.e. arrow with the point reduced to zero to create a line) through the proper points to yield the desired slope, or you can choose right click on graph, 'Edit Graph Data'
'Edit'. Choose 'Add Plot' from menu. 'OK'. Right click on graph, 'Change plot/series data' or 'Change plot lay-out', depending on whether you hit on a point or just the background of the graph.
'Custom function' under the 'fit' section of the menu.
Create your custom line function, in this case :=x-0.002, in the custom function area.
'Next Plot' and go to third dataset (second line function) and repeat. Your custom function is :=x-0.003 in this case. Repeat for final line. You should see the lines come up as you create them.

Quality Control Question
Question: Why are the upper and lower control lines for n=16 more narrow instead of wider (as expected and calculated) for n=1? When calculating by hand, at 3 times process sigma, the n=16 graph does not have the same UCL and LCL as calculated.
Answer: In QC charts, at n=1 you are producing the X and MR (moving range), NOT X-bar and R chart. If you try to perform the same analysis in the interactive QC, it will not allow you to select and run a X-bar and R chart with ony one point. You MUST select X and MR. Also, process sigma is multiplied by 3 (optional) BUT is divided by square root of n. Obviously at n=1, UCL/LCL IS 3 times process sigma. However at n=16, process sigma is divided by four, reducing the magnitude of the control limits from the expected values.
More questions and answers can be found on the FAQ page.

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