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SUMIF, SUMIFS and SUMPRODUCT




Let's look at the example below.

Zone Shift No of  Machines Output per machine
Zone 1 Shift A 15 15
Zone 2 Shift A 15 15
Zone 1 Shift B 15 20
Zone 2 Shift B 15 20
Zone 3 Shift A 15 20
Zone 1 Shift B 20 20
Zone 3 Shift B 20 15
Zone 3 Shift B 20 20
Zone 1 Shift A 20 20
Zone 2 Shift B 15 20



The requirement is to calculate the output for Zone 1 for Shift B.

SUMIF


1. Using SUMIF would require two additional columns to be created.

2. One to CONCATENATE to Zone and Machine =CONCATENATE(I2,J2) and another to multiply column K and L =K2*L2



3. Then we can use ==SUMIF(M2:M11,"Zone 1Shift B",N2:N11)


SUMIFS


1. Using SUMIFS will require one additional column to be created.

2. Add a Column to multiply column K and L =K2*L2 (column M lo longer required).

3. Then we can use =SUMIFS(N2:N11,I2:I11,"Zone 1",J2:J11,"Shift B")

SUMPRODUCT


1. Using SUMPRODUCT will NOT require any more additional columns.

2. SUMPRODUCT is meant for "Multiplies corresponding components in the given arrays, and returns the sum of those products."

3. IF we use =SUMPRODUCT(I2:I11="Zone 1",J2:J11="Shift B",K2:K11,L2:L11) the answer will be "0". It is because the results of 

I2:I11="Zone 1" = {TRUE, FALSE,TRUE, FALSE,FALSE....}
J2:J11="Shift B" = {FALSE,FALSE,TRUE,TRUE,FALSE.....}

4. To change TRUE  into 1 and FALSE into 0, we need to use "--". 

=SUMPRODUCT(--(I2:I11="Zone 1"),--(J2:J11="Shift B"),K2:K11,L2:L11)

--(I2:I11="Zone 1") = {1;0;1;0;0;.....}
--(J2:J11="Shift B") = {0;0;1;1;0......}

Note: 

-(I2:I11="Zone 1") = {-1;0;-1;0;0;.....}
-(J2:J11="Shift B") = {0;0;-1;-1;0......}


5. Essentially the calculation is,

(1x0x15x15 + 0x0x15x15 + 1x1x15x20 +........)




6. This formula will give answer we need.



Love to have your comments....




2 comments:

  1. I love to use the SUMIF function because it's practical but until I understood it, it took a long time :) It's a pity that I didn't came across to your website earlier, namely it's brief and concise. I have learned to use the SUMIF function by the following workshop what I recommend for all excel beginner http://www.excel-aid.com/the-excel-sumif-function.html

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