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lukasrocek21
New Contributor III

Variable in variable

Hello,

I have a problem with using variable in another variable.

I use number slider from 1 to 6 (step by 1), which changing variable 'vHour' - so it is number.

Then I have the second (text) variable 'vPeriod', which is name of flag in load script.

I use set analyse with this flag, so I need change set analyse by text variable.

This code does not work: [flag&text($(vHour))&hours]

Load script for flags:

if(now()-num(eventdtcr) < 0.25,'1','0') as flag6hours,

    if(now()-num(eventdtcr) < 0.2083,'1','0') as flag5hours,

    if(now()-num(eventdtcr) < 0.1666,'1','0') as flag4hours,

    if(now()-num(eventdtcr) < 0.125,'1','0') as flag3hours,

    if(now()-num(eventdtcr) < 0.0833,'1','0') as flag2hours,

    if(now()-num(eventdtcr) < 0.0416,'1','0') as flag1hours...

Set analyse: if(len(text(avg({$<$(vPeriod)={'1'}>} flagEPA))) = 0,'NO EVENT SCAN',avg({$<$(vPeriod)={'1'}>} flagEPA))

Next idea: '[flag' & text($(vHour)) & 'hours]' does not work too...

Thank you for your's answers.


1 Solution

Accepted Solutions
lukasrocek21
New Contributor III

Re: Variable in variable

Hi, I solved it.

As variable:

vVariale: text('avg({$<[flag' & text($(vHour)) & 'hours]={''1''}>} flagEPA)')

measure: ...$(=$(vVariable)) ...

8 Replies

Re: Variable in variable

I think by using this: '[flag' & text($(vHour)) & 'hours]' the following call should work:

if(len(text(avg({$<$(=vPeriod)={'1'}>} flagEPA))) = 0,'NO EVENT SCAN',avg({$<$(=vPeriod)={'1'}>} flagEPA))

Whereby I would probably use only one flag like:

hour(now()-eventdtcr) -1 as Flag

and as expression something like this:

alt(avg({$<Flag={$(vHour)}>} flagEPA), 'NO EVENT SCAN')

- Marcus

lukasrocek21
New Contributor III

Re: Variable in variable

Your code does not work...

Now I try this code: '[flag' & text($(vHour)) & 'hours] ={'1'}' , but I have a problem with apostrofs in braces

Any ideas?

techvarun
Valued Contributor II

Re: Variable in variable

share some sample data

Re: Variable in variable

Do you mean you don't want just create the field for the set analysis else the complete set analysis statement? Then of course you would need to handle multiple quotings and here probably by doubling the quotes like ...{''1''} ... But I would use string-values in such cases else really using the pure number like ... {1} ... and of course creating the flags in this way too.

- Marcus

lukasrocek21
New Contributor III

Re: Variable in variable

Yeah, I changed it by if(len(text(avg({$<$(vPeriod)>} flagEPA))) = 0,'NO EVENT SCAN',avg({$<$(vPeriod)>} flagEPA))


and vPeriod = 'flag' & text($(vHour)) & 'hours={''1''}'


but still does not work ...

Re: Variable in variable

Your variable needs to be evaluated before it's result is applied as set analysis statement with a $-sign expansion like above already mentioned - this meant: $(=vPeriod)

- Marcus

dwforest
Valued Contributor

Re: Variable in variable

Instead of making 6 flag columns, why not a single flagHour that contains 1 - 6 then you are changing the right side (as opposed to left) of the equation.

lukasrocek21
New Contributor III

Re: Variable in variable

Hi, I solved it.

As variable:

vVariale: text('avg({$<[flag' & text($(vHour)) & 'hours]={''1''}>} flagEPA)')

measure: ...$(=$(vVariable)) ...

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