Counting past occurrence given a classification

I can't see what's where.

Will you please attach a SMALL sample Excel workbook (10-20 rows of data is usually enough)? Please don't attach a picture of one (no-one will want to re-type all your stuff before starting).

1. Make sure that your sample data are truly REPRESENTATIVE of your real data. The use of unrepresentative data is very frustrating and can lead to long delays in reaching a solution.

2. Make sure that your desired solution is also shown (mock up the results manually).

3. Make sure that all confidential information is removed first!!

4. Try to avoid using merged cells. They cause lots of problems!

Unfortunately the attachment icon doesn't work at the moment. So, to attach an Excel file you have to do the following: Just before posting, scroll down to Go Advanced and then scroll down to Manage Attachments. Now follow the instructions at the top of that screen.

Try array entering this formula and filling down. If you aren’t familiar with array-entered formulas array enter means the formula must be committed from edit mode by simultaneously pressing and holding down Ctrl and Shift while hitting Enter.

Formula:

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Is this it????


=SUMPRODUCT((INDEX(Data!$B$2:$B$190,LARGE(IF(Data!$B$2:$B$190=A3,IF(Data!$F$2:$F$190>0,ROW(Data!$F$2:$F$190))),1)):Data!$B$190=A3)*ISBLANK((INDEX(Data!$F$2:$F$190,LARGE(IF(Data!$B$2:$B$190=A3,IF(Data!$F$2:$F$190>0,ROW(Data!$F$2:$F$190))),1)):Data!$F$190)))

This is an array formula.

Array Formulae are a little different from ordinary formulae in that they MUST be confirmed in the FIRST CELL ONLY by pressing CTRL+SHIFT+ENTER to activate the array, not just ENTER. After that, the array can be dragged down as normal, to cover the desired range.

You will know the array is active when you see curly brackets { } - or "curly braces" for those of you in the USA, or "flower brackets" for those of you in India - appear around the outside of your formula. If you do not use CTRL+SHIFT+ENTER you will (almost always) get an error message or an incorrect answer. Press F2 on that cell and try again.

Don't type the curly brackets yourself - it won't work...

@ makae90

This is non array entered and simpler than my formula post #4. It returns the same.

Formula:

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Also I am apparently interpreting the problem differently than others.

For example, for the type KFT only, how many blank entries are there in the column Legendary since the last entry for Leg?

I've interpreted this as the blanks between the last and next to last entry for Leg (that are KFT).

What am I missing?

Edit Never mind. What I am missing is the ability to understand plain English.

In this example, I need a formula with output 0 for MSG, since it has been 0 entries since the last Leg for MSG, and output 2 for UNG, since it has been 2 entries since the last Leg for UNG

Originally Posted by FlameRetired

What am I missing?

Edit Never mind. What I am missing is the ability to understand plain English.

We all do it, from timt to time. RoFLAO