## Search values distributed horizontally and return corresponding value

**Question:** Hi, The formula here works great but I can't figure out how to change it to work with data in columns.

Here is what I have:

=INDEX(A2:E2,SMALL(IF(A1:E1=A3,COLUMN(A1:E1),""),COLUMN()))

A B C D E

1 A B A C D

2 Car Bus Aeroplane Rocket Ship

3 A

I'd expect the result to read:

A B

4 Car Aeroplane

...but instead I get

A B

4 #NUM #NUM

Can you offer any advice?

*This is a question from Using array formula to look up multiple values in a list*

**Answer:**

Array formula in cell B8:

To enter an array formula, type the formula in a cell then press and hold CTRL + SHIFT simultaneously, now press Enter once. Release all keys.

The formula bar now shows the formula with a beginning and ending curly bracket telling you that you entered the formula successfully. Don't enter the curly brackets yourself.

### Explaining formula in cell B8

#### Step 1 - Check if lookup value is equal to values in cell range C2:I2

The IF function has three arguments, the first one must be a logical expression. If the expression evaluates to TRUE then one thing happens (argument 2) and if FALSE another thing happens (argument 3). The following lines explain the logical expression:

$C$2:$I$2=$C$5

becomes

{2012,2008,2011,2012,2014,2013,2012}=2012

and returns

{TRUE,FALSE,FALSE,TRUE,FALSE,FALSE,TRUE}

#### Step 2 - Return corresponding column number

The column number will help us identify the values we want to return from another row. TRUE - corresponding column number, FALSE - nothing "".

IF($C$2:$I$2=$C$5, MATCH(COLUMN($C$2:$I$2), COLUMN($C$2:$I$2)), "")

becomes

IF({TRUE,FALSE,FALSE,TRUE,FALSE,FALSE,TRUE}, MATCH(COLUMN($C$2:$I$2), COLUMN($C$2:$I$2)), "")

becomes

IF({TRUE,FALSE,FALSE,TRUE,FALSE,FALSE,TRUE}, {1,2,3,4,5,6,7}, "")

and returns

{1,"","",4,"","",7}.

#### Step 3 - Extract k-th smallest column number

To be able to return a new value in a cell each I use the SMALL function to filter column numbers from smallest to largest.

The ROWS function keeps track of the numbers based on an expanding cell reference. It will expand as the formula is copied to the cells below.

SMALL(IF($C$2:$I$2=$C$5, MATCH(COLUMN($C$2:$I$2), COLUMN($C$2:$I$2)), ""), ROWS($A$1:A1))

becomes

SMALL({1,"","",4,"","",7}, ROWS($A$1:A1))

becomes

SMALL({1,"","",4,"","",7}, 1)

and returns 1.

#### Step 4 - Return value based on column number

The INDEX function returns a value based on a cell reference and column/row numbers.

INDEX($C$3:$I$3, SMALL(IF($C$2:$I$2=$C$5, MATCH(COLUMN($C$2:$I$2), COLUMN($C$2:$I$2)), ""), ROWS($A$1:A1)))

becomes

INDEX($C$3:$I$3, 1)

becomes

INDEX({140,200,670,510,200,690,170}, 1)

and returns 140 in cell B8.

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That works fantastically! Thanks very much. A great way to start on a Monday morning!

i have two colums

department NO

sales 2

computers 1

laptops 1

books 2

i am doing lookup but

getting result is

2 books - i should get "sales" here

2 books

1 laptops - i should get "computers" here

1 laptops

Could you please help me out

rave,

Read this post: How to return multiple values using vlookup

=INDEX($A$2:$E$2, SMALL(IF($A$1:$E$1=$A$3, COLUMN($A$1:$E$1)-MIN(COLUMN($A$1:$E$1))+1, ""), COLUMNS($A:A)) + CTRL + SHIFT + ENTER

Works great, however if the criteria is not in the table, I need the cell to be blank. E.g ISNA for a vlookup etc excel2003.

Thanks

Ross,

=IFERROR(INDEX($A$2:$E$2, SMALL(IF($A$1:$E$1=$A$3, COLUMN($A$1:$E$1)-MIN(COLUMN($A$1:$E$1))+1, ""), COLUMNS($A:A)), "")

I'm having trouble with a formula. I need it to look at another sheet within the same workbook, and pull information. My sheet looks like this:

Last Name First Name Grade TCH Status Required Class CH

Thomas John 7 New 12 PHN01 10

It goes on to list 7 more Class and CH columns. Teachers have signed up for classes and I have a spreadsheet with their choices. I want to make sign in sheets but have excel automatically pull the teachers first and last name from the sheet they signed up on. I'm hoping this can be done automatically...:)

Nancy,

Can you explain in greater detail?

I want to make sign in sheets but have excel automatically pull the teachers first and last name from the sheet they signed up onDo you want multiple drop down list containing all the teachers last and first names?

I have a table of dates C32:I82. Each column represents a different type of day off. However, all dates in the range are included in total days off. I want to extract all dates from the range that fall between a start and an end date and store it in another range. I am having great difficulty with this as I am a novice at best.

Wil R.

However, all dates in the range are included in total days offCan you explain in greater detail?