Calculating Rolling Average Ignoring 0 Values

Jun 6, 2014

What I have is a spreadsheet with a whole bunch of sporting data on it. see attachment for an idea of the layout, Stats.jpg

In these data each round a player is given a rating. What I want to do is calculate is the average rating for each player across the last 3 and 5 games they have played. When a player misses a game they get a rating of 0 for the round. I want 0 ratings to be ignored in the running averages. Additionally, games yet to be played have a 0 in the cell and should be ignored. To get overall averages ignoring 0's was simple I used the averageif function, but I couldn't figure out how to use that but only extract the last 3 non 0 values. I currently have data up to round 12, so if a player has played in 12, 11 and 10 then the 3 round average should just be the average of these 3, but if they missed for example round 11 then the 3 round average should return the average of 9, 10 and 12.

The data is set out in the following way.

In column B I have a list of player names from cells B3:B618.

Across row 1 from N1:AM1 are labels "round 1" "round 2" etc.

The ratings for each player in each round are in N-AM and from 3-618. i.e. N3:AM3 contains the weekly rating for player 1, 4 contains player 2 etc.

I would like the 3 round averages to be returned for each player in column L and 5 round averages in column M.

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Calculating A Rolling Average

Oct 8, 2009

I have several worksheets with thousands rows (independent variables) and hundreds columns (all dependent variables). Each line basically gives me hundreds values for each independent variable - see below:
C9 39.65 653.95 5.28 163.56 99.56 14.49 ... ...
E9 7535.92 21500.56 2835.88 3122.98 7225.34 5371.25 ... ...
G9 111568 298021 12940 31645 181797 36996 ... ....

I need to know how the values in each row are distributed, and I ideally plot a 2D column graph of the distribution. Is there a way to do that and create/program a macro (with relative button on the workboook) that does it automatically once clicked?

Very often there are outlying values (bigger or smaller by a factor of 1000 or even more), mistakes, which I would like to identify and fix possibly

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I created a pivot table in which sales amounts are represented and a derived table in which market share percentages are showed. Now i am looking for a formula that is able to calculate average market share values. Depending on which country i selected in the pivot table and which category, the number of active companies are changed. How can i formulate this formula to calculate average market share percentages in a certain period. check out my attached file to clarify the situation.

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I want to omit null values from monthly averages I'm calculating for some in consistent data. Currently, the macro I wrote reads the empty cells and I believe is viewing them as zeros. When taking the monthly averages, in some cases on parameter 'X' might be sampled for a particular date at a location, but another parameter 'Y' isn't sampled for whatever reason on that particular date at the location. Therefore, there is no value in the cell for parameter 'Y' for that particular date (the value is null). When the macro runs, it sees the blank cell for the particular missing date, but I believe it still views that as a 0 value which it includes in the average, instead of overlooking that cell b/c it is an unknown. So, for example, it might thinks there are actually six actual sampling results instead of five, and calculates the average based on six being the total instead of five which seems to misrepresent the average. (e.g., it's currently viewing 2, 2, Null, 2, 2, 2 as n=6 instead of n=5)

If possible, I'd like to keep the structure of the code as below with only the minimal modifications to address this issue.

I do have Options-->Window Options-->Zero Values de-selected....

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I have a spreadsheet which has data in the format of:


Monday, 8 July 2013

Tuesday, 9 July 2013

[Code] ....

I calculate the average of the last four weekdays individually with =Average(A1,A8,A14..) in a cell above them to get a four week average.

Each time I add a new weeks worth of data, I manually adjust the formula to remove the first cell, and include the latest cell with new data.

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I'm looking for some help to create a rolling 12 mth average. To explain better I have added a copy of the part of the sheet to help you understand what I am working with.

What I'm looking for is the 12 mth average to show up in cell c26. I have the mths listed in cell A2-A25 and the data I want averaged is in C2-C25

An additional problems is that I only want the 12 mth avg calculated if data in the next mth is greater than zero. Meaning since this month is Mar-09 (which is already collecting data) I dont want to include Mar-09 data yet. I only want to know Mar-08 to Feb-09 average. Once data is returned to Apr-09 then I want the average to show for Apr-08 to Mar-09 and so on. I dont what is better to use vba code or a formula which ever is easier.

Or if someone has a better idea please share.

PalletsTotal Orders PickedJan-083547Feb-083031Mar-083616Apr-083472May-083562Jun-083850Jul-083293Aug-082753Sep-083821Oct-083269Nov-082920Dec-083203Jan-093072Feb-093275Mar-092902Apr-090May-090Jun-090Jul-090Aug-090Sep-090Oct-090Nov-090Dec-090Average3342TL ErrorsPercentage

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Attached is a simplified version of the layout I am working with

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See Attached.

The YTD 10 column is fine that will change everytime you update each month. I was wondering if there was a formula I could use for the Rolling 12 month Column.

At the moment it is averging from Mar 09-Feb10 which is correct but when it comes to putting in data for Mar 10, the Rolling 12 month column will obviously not change.

Is there a way of moving the formula along one each time you input data into a new month. So when Mar 10 has been entered the rolling 12 month column will pick up Apr-09-Mar-10 then when Apr 10 has been entered the formula will change again to May-09-APr-10?

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The following cells have the headers k2 has Allan, Cell L2 has Bill, Cell M2 has Charlie, Cell N2 has Don, cell o2 has Ellen and Cell P2 has Flora

Column J3 to J14 respectivley has Jan to Dec

The balance of the cells will have the data.

I then need to plot the rolling averages for each person on a gaph as teh months data is filled.

Below is the table:

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Here is the formula that I'm currently using: =AVERAGE(OFFSET(K4,,COUNT(K4:BV4)-13,,13))
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So in Cell K12 there is a rather large formula (I condensed it for this example).

This formula is to average out the respective cells in column J. For each cell there is a possibility of 9 different entries. NRT, N/O, 1,2,3,4,5,6,7

So based on the formula in K12 I need Cell J12 to Display the answer.

if any one of the Cells referenced in the formula are NRT then I need it to Display NRT. Which the Formula does now.

The problem comes in when a Cell is N/O (Not Observed)

How do I get the formula to Ignore N/O currently I have it set up to recognize N/O as 0. But excel averages 0 in and it affects the answer.

I know in a simple formula I can add <>0 to the formula to ignore zeros. How to write it into a bigger formula such as in K12.

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Excel tables to the web : [URL] .......

With this small sample, the answer should be 3.35% according to Excel when I choose just those neg and pos cells.

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[Code] ....

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