Design-Expert® version 6
software for experiment design

2/3/2005 DX 6.0.11

ON-LINE REGISTRATION

If you purchased the full version of Design-Expert (single user or network license) and haven't registered, you can do so on-line at www.statease.com/dx_register.html.

WHAT IS NEW SINCE VERSION 5?

A description of what's new can be found in the help system. In the program, choose Help/Contents from the menu bar. Under the topic, "Welcome to Design-Expert 6," you will find a section titled, "What's new in version 6 (the highlights)."

HELP?

See technical support.

INSTALLATION NOTES

Possible DLL conflicts

When you try to run Design-Expert 6 for the first time, you may see the following message:

       C:\Program Files\DX6\DX6.EXE
       A device attached to the system is not functioning.

       The MSVCP60.DLL file is linked to missing export
       MSVCRT.DLL:_lc_collate_cp

This error message indicates that you have an older version of MSVCRT.DLL on your system and it is being loaded instead of the one supplied with DX6. The best way to avoid this problem is to install the DLLs to the system folder.

If you did install the DLLs to the system folder, check the version on the msvcrt.dll located file there by right-clicking on it and choosing properties. It should be version 6.00.8397.0 or later. If it isn't, the install was not successful and you should try to reinstall.

For Windows NT 4.0 or Windows 2000, you will need to log on with an account that has administrator privileges in order to install the DLLs in the system folder.

WINDOWS NT 4.0:

When you choose "Install Design-Expert 6" from the main menu, the setup program will warn you if you do not have the proper authority to install system files. You will need to log out of your current account and log in as an administrator then restart the installation.

WINDOWS 2000:

If you do not have administrator rights, Windows 2000 will give you an opportunity to enter a suitable account and password when you launch the install program.

MISSING FUNCTIONALITY / KNOWN BUGS

The following are minor bugs or missing functionality that will be fixed in future updates of Design-Expert 6. Patches will periodically be posted on the Stat-Ease web site at www.statease.com under the software section. You may want to check it periodically for updates.

None reported.

BUGS FIXED SINCE DX 6.0.10

These bugs noted in version 6.0.10 have been fixed in 6.0.11.

OTHER CHANGES SINCE DX 6.0.10

BUGS FIXED SINCE DX 6.0.9

These bugs noted in version 6.0.9 have been fixed in 6.0.10.

OTHER CHANGES SINCE DX 6.0.9

BUGS FIXED SINCE DX 6.0.8

These bugs noted in version 6.0.8 have been fixed in 6.0.9.

OTHER CHANGES SINCE DX 6.0.8

BUGS FIXED SINCE DX 6.0.7

These bugs noted in version 6.0.7 have been fixed in 6.0.8.

OTHER CHANGES SINCE DX 6.0.7

BUGS FIXED SINCE DX 6.0.6

These bugs noted in version 6.0.6 have been fixed in 6.0.7.

OTHER CHANGES SINCE DX 6.0.6

BUGS FIXED SINCE DX 6.0.5

These bugs noted in version 6.0.5 have been fixed in 6.0.6.

OTHER CHANGES SINCE DX 6.0.5

The following functionality has been added or changed.

BUGS FIXED SINCE DX 6.0.4

These bugs noted in version 6.0.4 have been fixed in 6.0.5.

BUGS FIXED SINCE DX 6.0.3

These bugs noted in version 6.0.3 have been fixed in 6.0.4.

OTHER CHANGES SINCE DX 6.0.3

The following functionality has been added or changed.

BUGS FIXED SINCE DX 6.0.2

These bugs noted in version 6.0.2 have been fixed in 6.0.3.

OTHER CHANGES SINCE DX 6.0.2

The following functionality has been added or changed.

BUGS FIXED SINCE DX 6.0.1

These bugs noted in version 6.0.1 have been fixed in 6.0.2.

OTHER CHANGES SINCE DX 6.0.1

The following functionality has been added.

The following functionality has been changed.

The following missing functionality has been removed as a feature for the current version.

BUGS FIXED SINCE DX 6.0.0

These bugs noted in version 6.0.0 have been fixed in 6.0.1:

FREQUENTLY ASKED QUESTIONS

Here is a sampling of what can be found in the Help system. In the program, choose Help/Contents from the menu bar. Expand the topic node, "Welcome to Design-Expert 6," and you will find a sub-topic titled "Program Hints and Frequently Asked Questions."

Q.

I can't find a command that I expected to be here. Where should I look for it?

A.

Try clicking the RIGHT mouse button. In conformance with Windows standards, the right mouse button is used extensively throughout the program for various options.

   

Q.

How can I import data from a spreadsheet?

A.

Data can be imported and exported using the standard Windows cut and paste operations. Simply highlight the group of cells (or select all) and select copy (Ctrl-C). Go to the program you want to paste them into and select paste (Ctrl-V).

If you are trying to import a new design from a spreadsheet, first set up a similar dummy design in Design-Expert making sure the factor levels are correctly defined. Next duplicate (or delete) rows in the design layout to get the desired number of rows. Last, copy and paste the data from the other source into the design layout over the old dummy data.

   

Q.

Why do I get different results than the program gives me when I do the calculations myself?

A.

Differences between program results and hand calculations are normally due to a loss of significant digits when transferring values from Design-Expert to the program or calculator used to make the calculations. These differences can be particularly pronounced when a transformation is being used. For example, for readability, coefficients for the model on the ANOVA sheet are, by default, only displayed with 2 decimal places. You can increase the number of decimal places displayed by choosing the "force precision X decimal places" option under Edit/Preferences/Math.

To make sure you are not using truncated values, use the standard Windows cut and paste operations to copy the values (e.g., from the ANOVA sheet) and paste them directly into the spreadsheet or calculator program you are using to perform the calculations.

   

Q.

How do I view a graph of actual vs. predicted values, or some other combination of variables, which is not already provided in the program?

A.

This can be done by inserting one or two blank responses in the design layout and copying data from reports, like the Diagnostic section at the bottom of the ANOVA. Then choose Graph Columns using these new columns. The extra responses can be deleted when you are finished looking at or printing out the graph.

   

Q.

In many cases, it's cost-prohibitive for us to replicate the experiments to account for experimental variation. Is there a method using DX6 for us to utilize repetition (multiple samples) in each trial run?

A.

When there are multiple samples for individual runs, it is important to distinguish between experimental error (variation in control factors) and sample error (variation in sample measurements). You need to replicate the whole experiment to measure experimental error.

To handle sample error, you can take multiple samples for a particular run and enter the mean and standard deviation of the measurements as two separate responses. This will provide you with a single value (the mean), and a measure of the sample error (the standard deviation). It does not, however, give you any more information about the experimental error than is already provided by the hidden replication of the design.

   

Q.

How can I change the coding of a factor, or several factors, when the coded values have gotten messed up? This can happen if you enter actual values while displaying coded factors or edit the highs and lows in the design layout rather than the factor info dialog.

A.

Follow these steps:

  1. Display the data in the design layout in actual units.
  2. Click on a factor header to highlight the data in the column.
  3. Copy (Ctrl-C) to the clipboard.
  4. Right click on the column header and select "edit info..."
  5. Change the +1 / -1 levels to the actual factor levels. Watch out for CCD's so that you don't enter the alpha values here.
  6. Click OK and you will see the actual factor levels change to new incorrect values.
  7. Paste (Ctrl-V) the original values back into the column. You will get a warning message. Click OK!
  8. Repeat steps 2 to 7 for the remaining factors.

Unfortunately, this trick won't work with mixtures as you can't edit the pseudo ranges. You will need to rebuild the design.

   

Q.

In the design builder, parts of the display appear to be missing or overlapping.

A.

The program was designed for a minimum resolution of 800x600 using small system fonts. If you are using 640x480 or 800x600 with large fonts, not all views in the design builder will appear as they should. You can make these screens usable by turning off the design descriptions that appear at the top of the screen. To do this, follow these steps:

  1. Get out of the design builder and go back to the main view.
  2. Select Preferences from the Edit menu.
  3. In the "Math Design" section, check the box that is labeled: "Do not display design descriptions."

NETWORK ISSUES

Prior to release 6.0.9 the built-in network metering was controlled by a third-party product, softSENTRY. That product, and support for it, has been discontinued by the vendor. Because of some recent issues with that product we needed to find a replacement. Starting with version 6.0.9 the built-in metering is now handled by Protection PLUS which addresses several problems reported with the earlier product.

1. Network license lockup.

If the program terminated abnormally, softSENTRY did not release the license for other users. The PLUS system will release the unused licenses.

2. Restricted user issues.

If the user had limited privileges on his own computer he might get the error, "cannot save message," when trying to launch the program. softSENTRY attempted to write information to protected system areas on the disk which the user didn't have access to. Protection PLUS does not attempt write data to the local system areas and thus will work with restricted user privilege.

3. Launch from a data file.

On many systems you could not launch the network version by clicking on a data file. The error message "cannot write meter file" would appear as the system could not locate the control folder. This has been corrected with the new scheme.

4. Install the executable on the workstation.

Users with slow network connections can now improve the performance of the program by installing the executable on their local hard drive. The WrkSetup.exe gives you the choice of either running from the server or locally. When you choose a local install, the program executable and two help files are copied to the designated drive. A CUSTDATA.INI file is also created with the following two lines:

[Network]
NetworkPath=<path>

Where <path> is the location of the program on the server. When you run the local copy it will check the the server application for an available license.

TECHNICAL SUPPORT

For Technical Support or other information contact:

Phone:

612.378.9449

Fax:

612.378.2152

E-mail: Program Use

support_at_statease.com *

E-mail: Design / Statistics

stathelp_at_statease.com *

Web site:

http://www.statease.com

Other info:

info_at_statease.com *

* To use e-mail address replace _at_ with @ in your mail client.

Design-Expert® is a registered trademark of

Stat-Ease, Inc.
2021 East Hennepin Avenue
Suite 480
Minneapolis, MN 55413

Copyright © 2003. All rights reserved.