This post demonstrates how to calculate unique distinct products (Column E) and meeting a criterion or multiple criteria.

Table of Contents

  1. How many unique distinct products did Salesperson Jennifer sell?
  2. How many unique distinct products did Jennifer sell in January?
  3. How many unique distinct products did Jennifer sell in January and in region South?
  4. How many unique distinct products was sold in the south or in January?

 

Example 1,

How many unique distinct products did Salesperson Jennifer sell?

Array formula in cell E2:

=SUM(IF("Jennifer"=$D$5:$D$26, 1/(COUNTIFS($D$5:$D$26, "Jennifer", $E$5:$E$26, $E$5:$E$26)), 0))

How to create an array formula

  1. Copy (Ctrl + c) and paste (Ctrl + v) array formula into formula bar.
  2. Press and hold Ctrl + Shift.
  3. Press Enter once.
  4. Release all keys.

Explaining array formula in cell E2

Step 1 - Calculate unique distinct products that Jennifer sold

=SUM(IF("Jennifer"=$D$5:$D$26, 1/(COUNTIFS($D$5:$D$26, "Jennifer", $E$5:$E$26, $E$5:$E$26)), 0))

1/COUNTIFS($D$5:$D$26, "Jennifer", $E$5:$E$26, $E$5:$E$26)

becomes

1/{4; 2; 3; 4; 0; 3; 4; 3; 4; 3; 0; 3; 2; 3; 2; 2; 2; 4; 4; 4; 4; 3}

and returns

{0,25; 0,5; 0,333333333333333; 0,25; #DIV/0!; 0,333333333333333; 0,25; 0,333333333333333; 0,25; 0,333333333333333; #DIV/0!; 0,333333333333333; 0,5; 0,333333333333333; 0,5; 0,5; 0,5; 0,25; 0,25; 0,25; 0,25; 0,333333333333333}

 Step 2 - Filter Jennifers products

=SUM(IF("Jennifer"=$D$5:$D$26, 1/(COUNTIFS($D$5:$D$26, "Jennifer", $E$5:$E$26, $E$5:$E$26)), 0))

IF("Jennifer"=$D$5:$D$26, 1/(COUNTIFS($D$5:$D$26, "Jennifer", $E$5:$E$26, $E$5:$E$26)), 0)

becomes

IF({TRUE; TRUE; TRUE; FALSE; FALSE; FALSE; TRUE; TRUE; FALSE; FALSE; FALSE; TRUE; TRUE; FALSE; FALSE; TRUE; TRUE; FALSE; TRUE; FALSE; TRUE; FALSE}, {0,25; 0,5; 0,333333333333333; 0,25; #DIV/0!; 0,333333333333333; 0,25; 0,333333333333333; 0,25; 0,333333333333333; #DIV/0!; 0,333333333333333; 0,5; 0,333333333333333; 0,5; 0,5; 0,5; 0,25; 0,25; 0,25; 0,25; 0,333333333333333}, 0)

and returns

{0,25; 0,5; 0,333333333333333; 0; 0; 0; 0,25; 0,333333333333333; 0; 0; 0; 0,333333333333333; 0,5; 0; 0; 0,5; 0,5; 0; 0,25; 0; 0,25; 0}

Step 3 - Sum array

=SUM(IF("Jennifer"=$D$5:$D$26, 1/(COUNTIFS($D$5:$D$26, "Jennifer", $E$5:$E$26, $E$5:$E$26)), 0))

becomes

=SUM({0,25; 0,5; 0,333333333333333; 0; 0; 0; 0,25; 0,333333333333333; 0; 0; 0; 0,333333333333333; 0,5; 0; 0; 0,5; 0,5; 0; 0,25; 0; 0,25; 0})

and returns 4 in cell E2.

Example 2,

How many unique distinct products did Jennifer sell in January?

Array formula in C3:

=SUM(IF(("Jennifer"=$D$6:$D$27)*($B$6:$B$27<=DATE(2011, 1, 31)), 1/COUNTIFS($D$6:$D$27, "Jennifer", $E$6:$E$27, $E$6:$E$27, $B$6:$B$27, "<="&DATE(2011, 1, 31))), 0)

Example 3,

How many unique distinct products did Jennifer sell in January and in region South?

Array formula in D3:

=SUM(IF(("Jennifer"=$D$6:$D$27)*($B$6:$B$27<=DATE(2011, 1, 31))*("South"=$C$6:$C$27), 1/COUNTIFS($D$6:$D$27, "Jennifer", $E$6:$E$27, $E$6:$E$27, $B$6:$B$27, "<="&DATE(2011, 1, 31), $C$6:$C$27, "South")), 0)

Example 4

How many unique distinct products was sold in the south or in January?

Array formula:

=SUM(--(FREQUENCY(IF((($B$10:$B$31<=DATE(2011, 1, 31))*($B$10:$B$31>=DATE(2011, 1, 1)))+("South"=$C$10:$C$31), COUNTIF($E$10:$E$31, "<"&$E$10:$E$31), ""), COUNTIF($E$10:$E$31, "<"&$E$10:$E$31))>0))

Download excel sample file for this tutorial.

Count unique distinct values meeting criteria.xlsx
(Excel 2007 Workbook *.xlsx)

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