willing to pay price change equation

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il y a 3 mois 2 semaines #176304 par Maryam01
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Hello every one,

I would ask if can do willing to pay price change equation "W T P PRICE CHANGE" by lime survey.

I attached the equation with Example

La pièce jointe est absente ou indisponible



Thanks in advance.

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il y a 3 mois 2 semaines #176328 par holch
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Your example is not attached. Please explain a little bit more what you are trying to do and how it should look like.

I'm not a LimeSurvey GmbH member. I answer at the LimeSurvey forum in my spare time. No support via private message.
Some helpful links: Manual (EN) | Question Types | Workarounds

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il y a 3 mois 2 semaines #176340 par Maryam01
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This browser does not support PDFs. Please download the PDF to view it: Download PDF

Pièces jointes :

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il y a 3 mois 2 semaines #176342 par DenisChenu
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Expression Manager is totally ready for this : manual.limesurvey.org/Expression_Manager#Access_to_Functions

It's mathematic/logic , not really LimeSurvey issue …

Assistance on LimeSurvey forum and LimeSurvey core development are on my free time.
I'm not a LimeSurvey GmbH member, professional service on demand (or search sondages pro).
An error happen ? Before make a new topic : remind the Debug mode .

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il y a 3 mois 2 semaines #176378 par jelo
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Maryam01 écrit: I would ask if can do willing to pay price change equation "W T P PRICE CHANGE" by lime survey.

This kind of questions are possible with LimeSurvey (Exception: a looping is not possible - definite amount of questions has to be defined), but in reality not often used. Most respondents don't like these kind of questions. I would never use them in a real experiment. Looks more like a student assignment, where students answer the questions ;-)
In reality even more random WTP methods fail, e.g. GaborGranger

en.wikipedia.org/wiki/Gabor%E2%80%93Granger_method


What version of LimeSurvey is used?
You will need to learn ExpressionScript ( manual.limesurvey.org/Expression_Manager_-_quick_start_guide ) and create a few Equations to create the new price.
LimeSurvey is not supporting loops, so you need to know how many questions are asked at maximum.
Should be possible, cause you won't find many people which answer more than five questions of that style in a row.

The meaning of the word "stable" for users
www.limesurvey.org/forum/development/117...ord-stable-for-users

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