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qazzzlyt's avatar
qazzzlyt
Copper Contributor
Nov 30, 2024

Formula VSTACK/HSTACK with blank array

I have a formula =VSTACK(a,b,c,d), while length of each array is not fixed. Now, sometimes, let's say d is blank, or N/A. I want the result to be the stack of a+b+c. One solution is to use a IFERRO...
Excel
Formulas and Functions
office 365
  • SergeiBaklan's avatar
    SergeiBaklan
    Dec 02, 2024

    As variant

    =LET(
     FilterRange, LAMBDA(rng,id,name,
       IFERROR( FILTER(rng, CHOOSECOLS(rng, id) = name ), "⚽" ) ),
     Combined,  VSTACK(
       FilterRange( A1:B1000, 1, "Bird" ),
       FilterRange( D1:E1000, 1, "Dog"  )
     ),
     FILTER(
       Combined,
       NOT( ISNA( CHOOSECOLS(Combined, 2 ) ) ) )
)
SergeiBaklan's avatar
SergeiBaklan
MVP

As variant

=LET(
     FilterRange, LAMBDA(rng,id,name,
       IFERROR( FILTER(rng, CHOOSECOLS(rng, id) = name ), "⚽" ) ),
     Combined,  VSTACK(
       FilterRange( A1:B1000, 1, "Bird" ),
       FilterRange( D1:E1000, 1, "Dog"  )
     ),
     FILTER(
       Combined,
       NOT( ISNA( CHOOSECOLS(Combined, 2 ) ) ) )
)
qazzzlyt's avatar
qazzzlyt
Copper Contributor
Dec 08, 2024

Thank you all.

Seems we can't avoid something like ⚽ or CHAR(160).

LAMBDA + LET looks like the best solution because duplication is avoided.

I guess due to VSTACK grammar (array1, [array2], ...), the designer cannot find a place to accommodate a parameter to ignore error or blank value.

Thank you again.

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