QlikView: Can anyone help me understand the functionality of this variable

[rohit257]

This is an existing application, where the following variables are defined as

v_RateFactorKF

($5*($(v_RateARE_Original$2({$1}))/$(v_RateARE_Original$4({$3}))))

Call of this variable is this 
v_RateFactorKF(B,BQ1,BR,BRQ1,_FlagExclFCQ1,v_RateARE_Original))
Decoding this results in 

_FlagExclFCQ1*($(v_RateARE_OriginalBQ1({B}))/$(v_RateARE_OriginalBRQ1({BR})))

And as per definition & placing the parameters results in these

v_RateARE_ORIGINALBQ1

=Only({B}RateARE_OriginalQ1)

v_RateARE_ORIGINALBRQ1

=Only({BR}RateARE_OriginalQ1)

Can somebody help How will Only({B} ) and Only ({BR}) work ?

[marcus_sommer]

{B} and {BR} could mean that a bookmark or an alternate state are called or it are further variables.

Beside this I think it's a good example how variables shouldn't be used because they don't simplify the development and maintaining of views.