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(Write here your question/remark)Hello again,

Sorry for asking the question from my previous topic again, but I had to create an account since it no longer allowed me to attach my files or anything.

And it didn't let me log into my account anymore
I am writing my question again and sharing the LSS survey with you.

I hope I don't bother anyone.





Hello dear forum,

I am creating a survey where I show a list of coffee shops in a multiple choice question with 8 options.

What I'm trying to do is take 2 random brands from this list if more than 1 brand was selected, that is:

If you select only 1 option, I only ask one question for that selected option.

If you select 2 options, I will ask my next two questions, for those two selected options.

But if you select more than 2 options, for example:

1
3
4
5
7
8

I must take 2 random marks from those 8 options.

What I did is a mark calculation with the equation
join(if(P0401_1 == "Y", "A", ""), if(P0401_2 == "Y", "B", ""), if(P0401_3 == "Y", "C", " "), if(P0401_4 == "Y", "D", ""), if(P0401_5 == "Y", "E", ""), if(P0401_6 == "Y", "F", ""), if(P0401_7 == "Y", "G", ""), if(P0401_8 == "Y", "H", ""))

And then take a random one that works well, but I've gotten stuck trying to figure out how to do it with 2 random ones.

I hope I have been clear, my English is not very good.

My Version 5.6.42+231024

The next step is to remove the selected character from the string (function "str_replace")
Then the same procedure a second time.
Create a random number from 1 to length of string.
Pick the character at this position.

Quick reply from phone.

Joffm
 

Thanks Joffm

My first variable where I use the join is:
"eqBrands"
{join(if(P0401_1=="Y","A",""), if(P0401_2=="Y","B",""), if(P0401_3=="Y","C", ""), if(P0401_4=="Y","D",""), if(P0401_5=="Y","E",""), if(P0401_6=="Y","F" ""), if(P0401_7=="Y","G",""), if(P0401_8=="Y","H",""))}


My second variable for the rotation
is:
"eqRand"
if(is_empty(eqRand), rand(1, strlen(eqBrands)), eqRand)


The third variable takes the random mark is:
"eqBrand"
substr(eqBrands, eqRand - 1, 1)

And the fourth is where do I replace the selected brand?
"eqBrands2"
str_replace(eqRand, "", eqBrands)


This is correct?

Thanks for your help.

My survey on LSS is going again

No,
as you read in the manual the syntax is
str_replace(search, replace, subject)

What do you search for? Of course the character you extracted in the previous step: eqBrand
You replace with "nothing"
subject is: eqBrands

Meaning: {str_replace(eqBrand,"",eqBrands)}

Thanks Joffm,

I understand that this replaces the code that has been created randomly and a new random calculation is performed.

Should I create the same variables from the beginning again?

Sorry for the questions but I'm a little new to LS and I still don't fully understand the manual

Hello Joffm,

I already solved it, I just repeated the same sequence of variables and everything works wonderfully.

Thank you very much for your help,

Greetings,