I have a problem, I tell it with the example:

Q1 is a multiple choice question, with subQ 1,2,3....

I want to only ask Q2 (multiple choice, array filter: Q1) from people who checked minimum 2 answer. (so if you checked only 1 in Q1, jump the queston).

I tried the following:
Relevance equation:
sum(Q1_1,Q1_2,Q1_3,...,Q1_n)>1

But it doesn"t want to work.
And I have Version 1.92+ Build 120608, the newest.
Anyone can help me?

Thanks a lot!

Try:

Another option is:

Thanks for you answers.
I tried it in my survey, but it didn't want to work
But, your formulas are good, I tested it in a small "test" survey wth only 2 questions. Both formulas worked well, as I need it.

So I really don't understand, why it doesn't work in my real survey. In that survey the question has 26 subquestions (anwer options). Could it be the problem, the too many subquestions?

Too many options shouldn't be the problem.

Please attach your question group for testing.

I attached the survey (I copied into a new one, the questions).

There are some array filter. Do they can modify the validation?

I tried these validation equations:

count(Q17_1, Q17_2, Q17_3, Q17_4, Q17_5, Q17_6, Q17_7, Q17_8, Q17_9, Q17_10, Q17_11, Q17_12, Q17_13, Q17_14, Q17_15, Q17_16, Q17_17, Q17_18, Q17_19, Q17_20, Q17_21, Q17_22, Q17_23, Q17_24, Q17_25, Q17_26) > 1

sum((Q17_1 == 'Y'), (Q17_2 == 'Y'), (Q17_3 == 'Y'), (Q17_4 == 'Y'), (Q17_5 == 'Y'), (Q17_6 == 'Y'), (Q17_7 == 'Y'), (Q17_8 == 'Y'), (Q17_9 == 'Y'), (Q17_10 == 'Y'), (Q17_11 == 'Y'), (Q17_12 == 'Y'), (Q17_13 == 'Y'), (Q17_14 == 'Y'), (Q17_15 == 'Y'), (Q17_16 == 'Y'), (Q17_17 == 'Y'), (Q17_18 == 'Y'), (Q17_19 == 'Y'), (Q17_20 == 'Y'), (Q17_21 == 'Y'), (Q17_22 == 'Y'), (Q17_23 == 'Y'), (Q17_24 == 'Y'), (Q17_25 == 'Y'), (Q17_26 == 'Y')) > 1


And I really don't understand why it doesn't work, because I tested it another small survey and both method were excellent...

Could you help me?

OMG
After clicking a lot in limesurvey, I found my problem what I didn't recognize before, I used ' symbol, and the right one is, the double ".....

So thanks for your help !!!

Since you are using Array Filter, you need to use the following equation:

The .NAOK suffix is only needed in equations where one or more variables might be irrelevant (e.g. not shown due to conditions and/or array filtering). In general, if any variables are irrelevant, the entire equation is irrelevant. To over-ride that behavior, use the .NAOK suffix.

Examples and documentation of .NAOK can be found here and here .

ljanka wrote: OMG
After clicking a lot in limesurvey, I found my problem what I didn't recognize before, I used ' symbol, and the right one is, the double ".....

Tom, does it really make a difference if you use ((q1=="2")) or ((q2=='2'))? Can't one use both kind of quotes?

Mazi-

You should be able to mix the types of quotes. The root issue is that this was a case where the .NAOK suffix was needed.

So, I'm not sure what that OMG comment meant.

Thanks for clarifying, Tom!

Is there any reason why one shouldn't always use ".NAOK" for all expressions?

TMSWhite wrote: Since you are using Array Filter, you need to use the following equation:

Code:

count(Q17_1.NAOK, Q17_2.NAOK, Q17_3.NAOK, Q17_4.NAOK, Q17_5.NAOK, Q17_6.NAOK, Q17_7.NAOK, Q17_8.NAOK, Q17_9.NAOK, Q17_10.NAOK, Q17_11.NAOK, Q17_12.NAOK, Q17_13.NAOK, Q17_14.NAOK, Q17_15.NAOK, Q17_16.NAOK, Q17_17.NAOK, Q17_18.NAOK, Q17_19.NAOK, Q17_20.NAOK, Q17_21.NAOK, Q17_22.NAOK, Q17_23.NAOK, Q17_24.NAOK, Q17_25.NAOK, Q17_26.NAOK) > 1

There is also a shortcut so that you don't have to write such long equations. You can use the following:

or (to refer to Q17 from a different question, such as to only display Q18 if at least two questions from Q17 were answered):

Both of these will be auto-expanded to the longer equation shown. Documentation about this feature is found here .