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10 years 2 months ago #111749 by fabiu
randomize frames was created by fabiu
Hey guys,

in my survey I compare 2 homepages. I'd like to put them in my survey with a iframe and then randomize them - so the user either gets to see homepage/ frame A oder homepage/ frame B. Is this possible and if so, how?

thanks!
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10 years 2 months ago - 10 years 2 months ago #111753 by Mazi
Replied by Mazi on topic randomize frames
If you embed the frame as answer option e.g. at a list radio question, you can set to randomly list the options. This can be set at the advanced question settings: www.limesurvey.org/manual/QS:Random_order
Best regards/Beste Grüße,
Dr. Marcel Minke
Need Help? We offer professional Limesurvey support: survey-consulting.com
Contact: marcel.minke(at)survey-consulting.com
Last edit: 10 years 2 months ago by Mazi.
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10 years 2 months ago #111757 by tpartner
Replied by tpartner on topic randomize frames
I would put the iframes in separate text-display questions and control their visibility via relevance based on a random number in a hidden equation question.
Cheers,
Tony Partner
Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.
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10 years 2 months ago #111777 by fabiu
Replied by fabiu on topic randomize frames
So I tried to figure out an equation but none will work. The frames work perfectly fine, but they're just listed below each other. What is the equation supposed to look like?
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10 years 2 months ago #111783 by tpartner
Replied by tpartner on topic randomize frames
Assuming that your equation question precedes the text-display questions and has a code "random1", the equation in "random1" should be:
Code:
if(random1 > 0, random1 , rand(1, 1))

The relevance for the first text-display:
Code:
random1 == '1'

The relevance for the second text-display:
Code:
random1 == '2'


.
Cheers,
Tony Partner
Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.
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10 years 2 months ago - 10 years 2 months ago #111797 by fabiu
Replied by fabiu on topic randomize frames
ok so I found the code
Code:
{rand(1,2)}
and it worked perfectly fine - it showed either 1 or 2.

So I thought I could just put my frames in here instead of the 1 and the 2:
Code:
{rand(
('<iframe src="https://epetitionen.bundestag.de/" width="1000" height="600" ></iframe>'),
('<iframe src="https://www.uni-wuerzburg.de/" width="1000" height="600"></iframe>')
)}

all I see is an empty box, but I dont get any error messages. Is there an error in my code, which I just don't see?
Last edit: 10 years 2 months ago by fabiu.
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10 years 2 months ago - 10 years 2 months ago #111798 by tpartner
Replied by tpartner on topic randomize frames
That will not work, rand() is a PHP function. Please read the manual - www.limesurvey.org/manual/Expression_Man...#Access_to_Functions
Cheers,
Tony Partner
Solutions, code and workarounds presented in these forums are given without any warranty, implied or otherwise.
Last edit: 10 years 2 months ago by tpartner.
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5 years 7 months ago #181672 by Mazi
Replied by Mazi on topic randomize frames
Have a look at this example for setting up A/B tests at Limesurvey: survey-consulting.com/how-to-randomize-i..._used_for_AB_testing
Best regards/Beste Grüße,
Dr. Marcel Minke
Need Help? We offer professional Limesurvey support: survey-consulting.com
Contact: marcel.minke(at)survey-consulting.com
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