Forum Discussion
Create a ranking
You may still be reeling so I have had a first cut at incorporating your data
Dragging the corner of the matches table down should incorporated additional matches as would adding further data. The stats columns could be added as required.
This is a 365 implementation that relies upon Lambda functions.
It uses REDUCE to update the ladder for each game result in turn.
"Worksheet formula"
= REDUCE(ladder, SEQUENCE(ROWS(GameTbl)), Updateλ)
"Updateλ(current, idx)"
= LET(
challenger, INDEX(GameTbl, idx, 2),
challenged, INDEX(GameTbl, idx, 3),
outcome, INDEX(GameTbl, idx, 4),
aspired, IF(current = challenged, challenger, NA()),
removed, IF(current <> challenger, current, NA()),
reordered, TOCOL(HSTACK(aspired, removed), 3),
IF(outcome, reordered, current)
)I hope the attached demonstrates the calculation works despite looking nothing like a 'proper' spreadsheet!
Many thanks Peter. The outcome is what I'm after.
The formulae from NikolinoDE helped me to get the other columns set up, so this is good progress!
I'm not an advanced user, and so have to apologise now for the next question - how do I adjust it for my spreadsheet that I shared images of, and where do I place the code?I can't even see on your spreadsheet where the formula is, or where it's pointing to.I've tried to understand it and it's a level above my knowledge or guestimatability 😞p.s. You attached the spreadsheet - is it possible for me to do that? (I'm new to this forum).You may still be reeling so I have had a first cut at incorporating your data
Dragging the corner of the matches table down should incorporated additional matches as would adding further data. The stats columns could be added as required.
- You're literally a mind reader! I've sat for an hour not knowing where to start, but wanting to not seem like a total thicky!
Let me read your note; and thank you.
If it is any consolation, there are very few Excel users that would not find the formula fiercely difficult to understand! The formula is in cell K4 and returns an array that spills into the range K4:K11. The formula itself uses two defined names. The first 'ladder' is simply a named reference to the range C4:C11 which initialises the process. The second name 'Updateλ' is a named Lambda function and is where the going gets difficult for most. The content can be read and edited using Name Manager but is easier to see if the Microsoft Advanced Formula editor is downloaded as an add-in.
The ability to attach a spreadsheet is a privilege earnt by continued participation within the forum. It will come in due course. You could probably attach your workbook to a private message to one of us if you want it posted.
Meanwhile, if you copy the sheet containing my formula to your workbook it should set the function up in your workbook (as well as the odd inter-workbook reference that would need to be deleted)
If you are not already familiar with them, you will need to read up on:
1. Dynamic array formulas
2. Defined Names
3. The LET function which uses variables to hold values for reuse
4.The LAMBDA function which accepts values from function arguments
5. Array shaping functions, TOCOL in particular.
The good news about Lambda functions, though, is that they can be used without fully understanding how they work; the same thing as goes for every built-in Excel function.
Most of the things I have described this far are standard features of Excel 365. Something I tried specific to your problem, was to form two arrays
and then use TOCOL to reduce the stacked array to a single column, ignoring the #N/A errors, to give the updated ladder.
