Is there any plans to integrate quota system and expression manager? Currently one can not, for example, show "here are N seats available for Monday 10 AM."

Or, from another viewpoint, possibility to refer previous answers in EM. Like "You scored better than X percent of people taking the test so far."

See github.com/LimeSurvey/LimeSurvey/tree/ma...lugins/statFunctions

And the sample (used for test) survey
github.com/LimeSurvey/LimeSurvey/blob/ma...untFunctionsTest.lsa

manual.limesurvey.org/StatFunctions

Exactly what I want! How do I enable this for testing?

Enable the plugin if you are in 4.X

See github.com/LimeSurvey/LimeSurvey/tree/ma...lugins/statFunctions

Should this be added to the ExpressionScript documentation - manual.limesurvey.org/ExpressionScript_-...#Access_to_functions ?

Well, that was easy. Much more practical than quotas. Maybe this will grow similarly than EM has kind of superceded conditions?

But why statCountIf returns nothing, and not the number 0, if there are no match at all?

What is the status of this? Is it an experimental feature that might disappear in the future?

Jmantysalo wrote: But why statCountIf returns nothing, and not the number 0, if there are no match at all?

Unsure , you are sure of the code ? I think it muts return 0 too.

Jmantysalo wrote: What is the status of this? Is it an experimental feature that might disappear in the future?

No

1. it's a core plugin
2. With a test each time someone update code : github.com/LimeSurvey/LimeSurvey/tree/ma...46-fixed-em-function

Should this be added to the ExpressionScript documentation - manual.limesurvey.org/ExpressionScript_-...#Access_to_functions ?

Maybe, but maybe more create a page on "How to add new Expression Manager function" ?

We have this one too : github.com/LimeSurvey/LimeSurvey/tree/ma...mo/demoAddEmFunction

tpartner wrote:

See github.com/LimeSurvey/LimeSurvey/tree/ma...lugins/statFunctions

Should this be added to the ExpressionScript documentation - manual.limesurvey.org/ExpressionScript_-...#Access_to_functions ?

manual.limesurvey.org/ExpressionScript_-..._.28New_in_4.0.0_.29

About the zero vs. nothing please see attached lss-file. It says "Already has answered" if there is no answer at all (and the survey is active -- it says "Already 0 has answered" if when previewing).

Jmantysalo wrote: About the zero vs. nothing please see attached lss-file. It says "Already has answered" if there is no answer at all (and the survey is active -- it says "Already 0 has answered" if when previewing).

OK

Then : its better in my opinion

"" : no data can be returned
0 : data can be returned, but it's 0

It's clear enough.

To me it sounds illogical. No answers (with given restrictions) is zero, no matter why.