Important: Read this before posting to this forum

  1. This forum is for questions related to the use of Apollo. We will answer some general choice modelling questions too, where appropriate, and time permitting. We cannot answer questions about how to estimate choice models with other software packages.
  2. There is a very detailed manual for Apollo available at http://www.ApolloChoiceModelling.com/manual.html. This contains detailed descriptions of the various Apollo functions, and numerous examples are available at http://www.ApolloChoiceModelling.com/examples.html.
  3. Before asking a question on the forum, users are kindly requested to follow these steps:
    1. Check that the same issue has not already been addressed in the forum - there is a search tool.
    2. Ensure that the correct syntax has been used. For any function, detailed instructions are available directly in Apollo, e.g. by using ?apollo_mnl for apollo_mnl
    3. Check the frequently asked questions section on the Apollo website, which discusses some common issues/failures. Please see http://www.apollochoicemodelling.com/faq.html
    4. Make sure that R is using the latest official release of Apollo.
  4. If the above steps do not resolve the issue, then users should follow these steps when posting a question:
    1. provide full details on the issue, including the entire code and output, including any error messages
    2. posts will not immediately appear on the forum, but will be checked by a moderator first. This may take a day or two at busy times. There is no need to submit the post multiple times.

ApolloChoiceModelling forum - Privacy policy

This policy explains in detail how “ApolloChoiceModelling forum” along with its affiliated companies (hereinafter “we”, “us”, “our”, “ApolloChoiceModelling forum”, “http://www.apollochoicemodelling.com/forum”) and phpBB (hereinafter “they”, “them”, “their”, “phpBB software”, “www.phpbb.com”, “phpBB Limited”, “phpBB Teams”) use any information collected during any session of usage by you (hereinafter “your information”).

Your information is collected via two ways. Firstly, by browsing “ApolloChoiceModelling forum” will cause the phpBB software to create a number of cookies, which are small text files that are downloaded on to your computer’s web browser temporary files. The first two cookies just contain a user identifier (hereinafter “user-id”) and an anonymous session identifier (hereinafter “session-id”), automatically assigned to you by the phpBB software. A third cookie will be created once you have browsed topics within “ApolloChoiceModelling forum” and is used to store which topics have been read, thereby improving your user experience.

We may also create cookies external to the phpBB software whilst browsing “ApolloChoiceModelling forum”, though these are outside the scope of this document which is intended to only cover the pages created by the phpBB software. The second way in which we collect your information is by what you submit to us. This can be, and is not limited to: posting as an anonymous user (hereinafter “anonymous posts”), registering on “ApolloChoiceModelling forum” (hereinafter “your account”) and posts submitted by you after registration and whilst logged in (hereinafter “your posts”).

Your account will at a bare minimum contain a uniquely identifiable name (hereinafter “your user name”), a personal password used for logging into your account (hereinafter “your password”) and a personal, valid email address (hereinafter “your email”). Your information for your account at “ApolloChoiceModelling forum” is protected by data-protection laws applicable in the country that hosts us. Any information beyond your user name, your password, and your email address required by “ApolloChoiceModelling forum” during the registration process is either mandatory or optional, at the discretion of “ApolloChoiceModelling forum”. In all cases, you have the option of what information in your account is publicly displayed. Furthermore, within your account, you have the option to opt-in or opt-out of automatically generated emails from the phpBB software.

Your password is ciphered (a one-way hash) so that it is secure. However, it is recommended that you do not reuse the same password across a number of different websites. Your password is the means of accessing your account at “ApolloChoiceModelling forum”, so please guard it carefully and under no circumstance will anyone affiliated with “ApolloChoiceModelling forum”, phpBB or another 3rd party, legitimately ask you for your password. Should you forget your password for your account, you can use the “I forgot my password” feature provided by the phpBB software. This process will ask you to submit your user name and your email, then the phpBB software will generate a new password to reclaim your account.