Forum Discussion

PetrP's avatar
PetrP
Frequent Visitor
5 years ago

Lookup for value based on sorted mapping table

Hi,

I have been solving the categorization case for some time. The case is therefore:

 

I have an mapping table (MapTable) where the order is important.

 

KeywordBrandIndex
e-tronElectric CAR0
sportbackSport CAR1
Q6SUV2
4xFourCross CAR3
citycarverCity CAR4

 

Also I have Product Table (Products).

Product
A1_citycarver_s-tronic_e-tron
A1_citycarver_s-tronic_TSI
A1_citycarver_s-tronic_TSI_4x
A6_sportback_s-tronic_TSI_4x
A6_avant_s-tronic_TSI_4x
Q6_sportback_s-tronic_TSI_4x
Q6_avant_s-tronic_TSI_e-tron
Q6_family_s-tronic_TSI_4x

 

Based on keyword from MapTable I need to assign Brand. As is known, LOOKUPVALUE function works with native sorting, you cannot specify another column in MapTable for sorting. So after using this function you get wrong Brand values. 

Brand = 
LOOKUPVALUE(MapTable[Brand],MapTable[Keyword],FIRSTNONBLANK(FILTER(VALUES(MapTable[Keyword]),SEARCH(MapTable[Keyword],Products[Product],1,0)),1))

 Second option I often use is that I am using all columns in filter, then I also need to get only specified column result as "search_value".

Brand Sorted = 
LOOKUPVALUE(MapTable[Brand],MapTable[Keyword],SELECTCOLUMNS(FIRSTNONBLANK(FILTER(VALUES(MapTable),SEARCH(MapTable[Keyword],Products[Product],1,0)),1),"search_value",MapTable[Keyword]))

 I hope the second option works, but does anyone have any other solution?

 

The result seems like:

 

Your feedback is welcome!

Thank you,

Petr

categorization
LOOKUPVALUE

2 Replies

  • amitchandak's avatar
    amitchandak
    Super User
    5 years ago

    PetrP , Not very clear to me.

     

    You can also try like

    Minx(filter(MapTable, SEARCH(MapTable[Keyword],Products[Product],,0)>0),MapTable[Brand])

    • PetrP's avatar
      PetrP
      Frequent Visitor
      5 years ago

      amitchandak  Your formula just searching by native search, not based on search keyword ranking (index).

       

      This means I need to use such a mechanism that iterate all keywords in MapTable row by row by Index rank. E.g..: search e-tron, if not found then search sportback etc.. If any keyword is searched, use the Brand column.