Count groups in calendar
Question:
Sam asks:
Is there a formula that can count blocks
For eg in your picture (see picture above) if the green blocks had the letter G and the Red blocks had the letter R and I had to return 4 as the answer -3G + 1R
Is this possible through a formula?
You can find the question here:
Count overlapping dates in excel
Answer:
The image above shows the groups in row 3, the formula in cell B16 counts the number of groups.
Formula in B16:
Explaining formula in cell B16
=SUMPRODUCT(--($B$3:$AE$3<>$C$3:$AF$3), --($C$3:$AF$3<>""))+($B$3<>"")
Step 1 - Check if next cell is not equal to current cell
=SUMPRODUCT(--($B$3:$AE$3<>$C$3:$AF$3), --($C$3:$AF$3<>""))+($B$3<>"")
--($B$3:$AE$3<>$C$3:$AF$3)
becomes
--({"G", "G", 0, "G", "G", "G", "R", "R", "R", "R", "R", "R", "R", "R", "R", "G", "G", "G", "G", "G", "G", "G", 0, 0, "G", "G", "G", "G", 0, "G"}<>{"G", 0, "G", "G", "G", "R", "R", "R", "R", "R", "R", "R", "R", "R", "G", "G", "G", "G", "G", "G", "G", 0, 0, "G", "G", "G", "G", 0, "G", "G"}
becomes
--({FALSE, TRUE, TRUE, FALSE, FALSE, TRUE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, FALSE, TRUE, TRUE, FALSE})
and returns
{0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 1, 0}
Step 2 - Check if cells are empty
=SUMPRODUCT(--($B$3:$AE$3<>$C$3:$AF$3), --($C$3:$AF$3<>""))+($B$3<>"")
--($C$3:$AF$3<>"")
becomes
--($C$3:$AF$3<>"")
becomes
--({TRUE, FALSE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, FALSE, FALSE, TRUE, TRUE, TRUE, TRUE, FALSE, TRUE, TRUE})
and returns
{1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1}
Step 3 - Check if first cell is not empty
=SUMPRODUCT(--($B$3:$AE$3<>$C$3:$AF$3), --($C$3:$AF$3<>""))+($B$3<>"")
($B$3<>"")
returns TRUE
Step 4 - All together
=SUMPRODUCT(--($B$3:$AE$3<>$C$3:$AF$3), --($C$3:$AF$3<>""))+($B$3<>"")
becomes
=SUMPRODUCT({0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 1, 0}, --($C$3:$AF$3<>""))+($B$3<>"")
becomes
=SUMPRODUCT({0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 1, 0}, {1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1})+($B$3<>"")
becomes
=SUMPRODUCT({0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 1, 0}, {1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1})+TRUE)
becomes
=5+TRUE
and returns 6.
Functions in this article:
SUMPRODUCT(array1, array2, )
Returns the sum of the products of the corresponding ranges or arrays
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Oscar..Thanks for this brilliant formula.
One more question for the Calendar that you have set up above can we have a excel formula which will give us a below table
StarWk EndWk Name
1 2 G
4 6 G
7 15 R ... and so on
Sam,
Read this post: https://www.get-digital-help.com/2010/08/29/extract-dates-from-a-cell-block-schedule-in-excel/