## Filter duplicate values in a range using “contain” condition

The array formula in cell B10 extracts duplicate values from cell range B2:D4 if they contain string specified in cell C7.

Array formula in B10:

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 B10

#### Step 1 - Identify values containing search string

The SEARCH function returns a number representing the location of a text string in another string.

ISNUMBER(SEARCH($C$7,$B$2:$D$4))

becomes

ISNUMBER(SEARCH("a",{"Apple", "Banana", "Blackberry"; "Orange", "Lemon", "Blood orange"; "Blueberry", "Banana", "Orange"}))

becomes

ISNUMBER({1,2,3;3,#VALUE!,9;#VALUE!,2,3})

and returns

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

#### Step 2 - Keep track of previous values

The COUNTIF function counts values based on a condition or criteria, the first argument contains an expanding cell reference, it grows when the cell is copied to cells below. This makes the formula aware of values displayed in cells above. 0 (zero) indicates values that not yet have been displayed

COUNTIF(B9:$B$9,$B$2:$D$4)=0

becomes

COUNTIF("Unique distinct values", {"Apple", "Banana", "Blackberry";"Orange", "Lemon", "Blood orange";"Blueberry", "Banana", "Orange"})=0

becomes

{0,0,0;0,0,0;0,0,0}=0

and returns

{TRUE,TRUE,TRUE; TRUE,TRUE,TRUE; TRUE,TRUE,TRUE}.

#### Step 3 - Identify duplicates

The COUNTIF function counts values based on a condition or criteria, a value is larger than 1 indicates a dupilcate.

COUNTIF($B$2:$D$4,$B$2:$D$4)>1

becomes

COUNTIF({"Apple", "Banana", "Blackberry";"Orange", "Lemon", "Blood orange";"Blueberry", "Banana", "Orange"}, {"Apple", "Banana", "Blackberry";"Orange", "Lemon", "Blood orange";"Blueberry", "Banana", "Orange"})>1

becomes

{1,2,1;2,1,1;1,2,2}>1

and returns

{FALSE,TRUE, FALSE;TRUE, FALSE,FALSE; FALSE,TRUE, TRUE}.

#### Step 4 - Multiply arrays

All three corresponding values must be true in order to get the value in a later step.

(COUNTIF(B9:$B$9, $B$2:$D$4)=0)*ISNUMBER(SEARCH($C$7, $B$2:$D$4))*(COUNTIF($B$2:$D$4, $B$2:$D$4)>1)

becomes

{TRUE,TRUE, TRUE;TRUE, FALSE,TRUE; FALSE,TRUE, TRUE}*{TRUE,TRUE,TRUE; TRUE,TRUE,TRUE; TRUE,TRUE,TRUE}* {FALSE,TRUE, FALSE;TRUE, FALSE,FALSE; FALSE,TRUE, TRUE}

and returns

{0,1,0; 1,0,0; 0,1,1}

#### Step 5 - Replace TRUE with unique number

The IF function returns a unique number if boolean value is TRUE. FALSE returns "" (nothing). The unique number is needed to find the right value in a later step.

IF((COUNTIF(B9:$B$9, $B$2:$D$4)=0)*ISNUMBER(SEARCH($C$7, $B$2:$D$4))*(COUNTIF($B$2:$D$4, $B$2:$D$4)>1), (ROW($B$2:$D$4)+(1/(COLUMN($B$2:$D$4)+1)))*1, "")

becomes

IF({0,1,0; 1,0,0; 0,1,1}, (ROW($B$2:$D$4)+(1/(COLUMN($B$2:$D$4)+1)))*1, "")

becomes

IF({0,1,0; 1,0,0; 0,1,1}, {2.33333333333333, 2.25, 2.2; 3.33333333333333, 3.25, 3.2; 4.33333333333333, 4.25, 4.2}, "")

and returns

{"",2.25,""; 3.33333333333333,"",""; "",4.25,4.2}

#### Step 6 - Find smallest value in array

The MIN function returns the smallest number in array ignoring blanks and text values.

MIN(IF((COUNTIF(B9:$B$9, $B$2:$D$4)=0)*ISNUMBER(SEARCH($C$7, $B$2:$D$4))*(COUNTIF($B$2:$D$4, $B$2:$D$4)>1), (ROW($B$2:$D$4)+(1/(COLUMN($B$2:$D$4)+1)))*1, ""))

becomes

MIN({"",2.25,""; 3.33333333333333,"",""; "",4.25,4.2})

and returns 2.25.

#### Step 7 - Find corresponding value

IF(MIN(IF((COUNTIF(B9:$B$9, $B$2:$D$4)=0)*ISNUMBER(SEARCH($C$7, $B$2:$D$4))*(COUNTIF($B$2:$D$4, $B$2:$D$4)>1), (ROW($B$2:$D$4)+(1/(COLUMN($B$2:$D$4)+1)))*1, ""))=(ROW($B$2:$D$4)+(1/(COLUMN($B$2:$D$4)+1)))*1,$B$2:$D$4,"")

becomes

IF(2.2={2.33333333333333, 2.25, 2.2; 3.33333333333333, 3.25, 3.2; 4.33333333333333, 4.25, 4.2}, $B$2:$D$4, "")

becomes

IF({FALSE,FALSE,TRUE; FALSE,FALSE,FALSE; FALSE,FALSE,FALSE}, $B$2:$D$4, "")

and returns

{"","","Banana";"","","";"","",""}

#### Step 8 - Concatenate strings in array

The TEXTJOIN function returns values concatenated ignoring blanks in array.

TEXTJOIN("",TRUE,IF(MIN(IF((COUNTIF(B9:$B$9,$B$2:$D$4)=0)*ISNUMBER(SEARCH($C$7,$B$2:$D$4)),(ROW($B$2:$D$4)+(1/(COLUMN($B$2:$D$4)+1)))*1,""))=(ROW($B$2:$D$4)+(1/(COLUMN($B$2:$D$4)+1)))*1,$B$2:$D$4,""))

becomes

TEXTJOIN("", TRUE, {"","","Banana";"","","";"","",""})

and returns "Banana" in cell B10.

### Download Excel *.xlsx file

Filter duplicate values in a range using “contain” condition.xlsx

Extract a list of duplicates from a column

The array formula in cell C2 extracts duplicate values from column A. Only one duplicate of each value is displayed […]

Extract a list of duplicates from three columns combined

The following regular formula extracts duplicate values from column B (List1), D (List2) and F (List3) combined, the result is […]

Filter values that exists in all three columns

This article explains how to extract values that exist in three different columns, they must occur in each of the […]

Find min and max unique and duplicate numerical values

Question: How do I get the largest and smallest unique and duplicate value? The image below shows you a list […]

Extract duplicate values with exceptions

The formula in cell E2 returns duplicate values from column A but values in column C are excluded from the […]

Extract a list of duplicates from two columns combined

The following regular formula extracts duplicates from column B (List1) and column D (List2) combined, the result is shown in […]

Filter duplicates within same date, week or month

The image above demonstrates a formula in cell E3 that extracts duplicate items if they are on the same date. […]

Extract a list of alphabetically sorted duplicates based on a condition

The following image shows you a data set in column B and C. The formula in cell E2 extracts a […]

Label groups of duplicate records

Michael asks: I need to identify the duplicates based on the Columns D:H and put in Column C a small […]

Extract a list of alphabetically sorted duplicates from a column

The following array formula extracts duplicate values sorted from A to Z from cell range B3:B21. Excel array formula in […]

### Leave a Reply

### How to comment

**How to add a formula to your comment**

<code>Insert your formula here.</code>

**Convert less than and larger than signs**

Use html character entities instead of less than and larger than signs.

< becomes < and > becomes >

**How to add VBA code to your comment**

[vb 1="vbnet" language=","]

Put your VBA code here.

[/vb]

**How to add a picture to your comment:**

Upload picture to postimage.org or imgur

Paste image link to your comment.

**Contact Oscar**

You can contact me through this contact form