choice-metrics.com

Overall the syntax looks reasonable (I made a few syntax corrections as admin).

I would definitely use ;alts=drugA*,drugB* to check for repeated choice tasks since you are using unlabelled alternatives.

The blocking means that each respondent only receives two choice tasks but perhaps that is what ...

Ngene version 1.3 is now available and recommended for all users (including as a free update to existing users). The version has many stability improvements. You are particularly encouraged to install this version if you are generating orthogonal designs.

The easiest way to update Ngene is to ...

Good to hear.

Andrew

Hi Tom

Can you please check that you are using that latest version of Ngene, 1.2.1? You can check via Help menu/About. Versions of the software prior to 1.1.2 will regenerate the blocking column when a design is opened. Since this is generally undesirable, we changed this in versino 1.1.2.

The ...

1. Using zero priors will not confuse Ngene - these effectively will not count towards the dominance checks.

2. The final level specified in syntax is treated as the base level (level 2 for sideeffect). So -0.00001 and -0.00002 line up (although I might have thought very common side effects would ...

I have replied to your email, but note the following:
* The ANT attribute is missing from the candidate set
* The optionC.ALI attribute is out of order and should be in the order in which the attribute is introduced in the utility expression.

The Ngene code is not currently doing as many checks on ...

If you have tried to activate Ngene using the Online Activation option in late November or December 2018, you will likely have encountered an error stating that there is no internet connectivity.

This problem now affects all versions of Ngene prior to the newly released 1.2.1, which can be ...

The latest version of Ngene, 1.2.1, is now available for download at http://choice-metrics.com/download.html .

This version has a number of bug fixes. Most importantly, if you need to activate Ngene, you will now need to use this version to perform an online activation (i.e. over the internet with ...

Dear Goedele

I will email you separately about this, but when this happens it is typically because the operating system has not allowed write access for the Ngene.lf file which is contained in the installation directory. This can be due to enterprise IT policies. Giving this file write access ...

Thanks for the spot. This is a bug that has been introduced with version 1.2 (due to some new functionality we added). We will fix this in 1.2.1, which should be out in the next 1-2 months.

In the meantime, if a simultaneous orthogonal design with two way interactions is required, you can install ...