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Main chapters

  1. LimeSurvey Cloud vs LimeSurvey CE
  2. LimeSurvey Cloud - Quick start guide
  3. LimeSurvey CE - Installation
  4. How to design a good survey (Guide)
  5. Getting started
  6. LimeSurvey configuration
  7. Introduction - Surveys
  8. View survey settings
  9. View survey menu
  10. View survey structure
  11. Introduction - Questions
  12. Introduction - Question Groups
  13. Introduction - Surveys - Management
  14. Survey toolbar options
  15. Multilingual survey
  16. Quick start guide - ExpressionScript
  17. Advanced features
  18. General FAQ
  19. Troubleshooting
  20. Workarounds
  21. License
  22. Version change log
  23. Plugins - Advanced
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Translations

Translations:ExpressionScript - Presentation/113/en

From LimeSurvey Manual

Say you want to show a running total of all relevant answers. You might try to use the equation {sum(q1,q2,q3,...,qN)}. However, this gets translated internally to LEMif(LEManyNA("q1","q2","q3",...,"qN"),"",sum(LEMval("q1"),LEMval("q2"),LEMval("q3"),...,LEMval("qN"))). So, if any of the values q1-qN are irrelevant, the equation will always return false. In this case, the sum() will show "0" until all questions are answered.

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