Looking for a formula to calculate 5 yr avg deviation.
year # of event
2007 59
2008 63
2009 53
2010 42
2011 46
with this set of numbers I can figure out the formula for 5 yr avg but can't figure out how to arrive @ the -18.3%.
where 5 yr avg is 52.6
where 5 yr avg deviation is -18.3%
I have a set of % score values (e.g. 88%, 94%, 82%, 67%)
I would like to know if there is a relatively simple formula that can be used to calculate the AVERAGE DEVIATION from 100%, as opposed to the AVERAGE DEVIATION from the mean, which is what the excel function =AVEDEV will return.
E.g. The Average Deviation from the mean for the the above set of values is 8.25%, whereas the Average Deviation from 100% is 17.25%
I can create a complex manual formula which sums absolute values of the variation from 100% of each score, and then divides by the count total of the number of scores, however this is flawed for several reasons, including the fact it is very time consuming when used across a large set of scores, and it is corrupted when a non score exists in a cell (some of the 'scores' may be '-', in which case they should be ignored and not included in the calculation of the average deviation from 100% by treating as a 0% score (and a deviation of 100% from 100%).
I'm calculating meter data in 5 min intervals B column is primary meter data C column is secondary meter data B and C are averaged in D using
=AVERAGEIF(B3:C3,">0")
I'm using AverageIf ">0" because one of the two meters is regularly removed from service for calibration, in which case I don't average, I'll only use the online meter reading.
Now I have to figure out how to average B3 and C3 only when the deviation between the two is <10%, and or if >10% to use the greater of the two values.
The examples are B12, C15,18,19...
I'm currently trying to perform some statistical functions on a range of data but with little success.
I want to "AVERAGE" the range and also do a "STDEV" on the range G8:G107 but some of the cells contain #N/A formula errors. I must have the formula returning #N/A to the cells else my chart on the same range plots the empty cell as 0.
What formula can I use that will let me do the standard average and stdev functions on that range, but ignoring the #N/A errors as if they were simply empty cells?
I have tried to find information on this subject, but it seems diifficult to find exactly what I am looking for. I have provided a test example of the operation that I would like to acheive. The first example (Method 1) works well enough but would require defining more detailed functions beyond the scope of average. This would probably be ok, but more importantly, I would like to source particular arrays in this manner for other tasks beyond averages and even standard deviation and am not quite sure how this can be done. In an attempt to describe the situation, I have provided a second example (Method 2). In this example, I am trying to take the average of the jth column array to create an array of averages. I am not sure if I am incorrectly setting up the matrix, if the functions don't perform this way in the matrix, or if this is simply not possible.
Sub test()
a = 5
b = 5
Redim X(1 To a, 1 To b) As Double
'Assumes there is a matrix of values [a x b] drawn from worksheet
For j = 1 To b
For i = 1 To a
X(i, j) = Cells(i, j)
Next
Next
'----METHOD 1---------------------------------------------
'I know this way works using average as an example, but...
Redim AverageX(1 To a, 1 To b) As Double.......................
Ive been given the data for bond pricing for two tenures i.e. 15 years and 20 years . I needed to find the average pricing for 16.5 years , whether excel is able to compute such pricing?
View 5 Replies View RelatedI have a list of people with 10 years of salary history for each (in ten consecutive columns on the spreadsheet).
I need to calculate the HIGHEST 3 consecutive year average salary for each (if they have less than 3 years with salary, then it should just average the years the do have, be it 1 or 2 years).
Here is the kicker: some people have breaks in service (for these years, there is a blank in that entry). These years should be ignored and skipped in calculating the avergaes.
So if someone had salary figures in years 1, 2, and 4, but a blank in year three, the average of years 1, 2, and 4 would constitute one three year average (whether or not it is the highest is a whole other matter...).
I have been round-and-round the best way of doing this. I was thinking of maybe creating a UDF that calculates a three average, then do it up to 8 times (one for each starting year) in 8 "helper columns", and taking the highest average.
I have a list of 187 countries and I would like to find a way to do this with an array and not by hand. Attached here is an excel with a sample; I would like to compute the standard deviation of the variable for the period 1980-2008 for each country separately. Is there a way to do this without me having to select by hand the range corresponding to each country in the st dev formula?
View 5 Replies View RelatedI want to find the correct formula to find answers using excel for the folliowing:
1. >3Sds
2. 3SDs<>2SDs
3. 2SDs<>1SD
4. <1SDs
This question uses 3 sigma rule (see attached worksheet) and the formula needs to be re-arranged to meet new criteria. So, we need to consider both sides of nornmal distributiion (ND) curve. eg. when we say >3SD it means it should count all valuee falling in the rage "Mean(Average)+3SD AND Mean-3SD" i.e two extreme ends of the ND cureve. I have inserted a normal distribution diagram and colour coded the ranges so that it will be easy to identify. Please refer comments inserted in K7to N7, cells that contain formula that need to be reset.
I am trying to come up with a STDEVA formula that will only count values greater than 0 in a data set. Is this possible?
View 2 Replies View RelatedI have a date 07/28/2027 and need Excel to calculate a date 65 years in the future taking into account leap years.
View 9 Replies View RelatedHere is my formula:
=E3*(1+E9/365)^(365*E5)
Cell E5 contains a place for you to put in the number of years you want
I want to modify this formula so that it calculates months instead of years, but still be based of a 365 day calendar year.
See attached. (I added in some arrows for the first month so it is easier to follow the logic)
I am working with monthly revenues. Revenues are earned in a specific month but only a % is received in that month and over the next 4 months. I need a formula that will spread these revenues earned in 1 month over the next 4 months.
Currently, I have a complex Index/Match formula which works until September. September, October, November, and December do not work correctly because once the months roll over from month 12 (December) back down to month 1 (January), my formula cannot recognize the range.
Essentially, I need the formula to return the correct amount that is being paid, even across different years.
I don't know if my formula can be modified or a new formula would be more efficient.
(This post originated from Commercial Services, which I just requested be removed from that forum)
The formula that I currently have in E2, is giving me the number of years served by an employee. Is there another formula that can give me the number of years each employee has served? This is the formula that I have in E2
[Code] .....
Attached File : VACATION DAYS ACCURED.xls
I am trying to come up with a formula to determine if someone is 21 years old or not. After I enter their DOB if they are 21 or over I would like the cell to turn Green, if not I would like it to turn red. I have tried alot of different formulas that primary pertain to days and months but nothing for years.
View 3 Replies View RelatedI am using the following formula to calculate years months and days in Excell 2007
=DATEDIF(C7,D7,"y") & " yrs, " & DATEDIF(C7,D7,"ym") & " mths, " & DATEDIF(C7,D7,"md") & " days"
C7 3/24/04
D7 1/4/08
What is returned is 3 years, 9 months, 136 days
How might if fix it show the correct days?
I have come accross this calendar online and it suits my requirements, however, the month s currently static and the year is dynamically controlled by a spin button.
The formulas in the relevent days are as follows
Day 1 =IF(AND(YEAR(JanOffset+1)=calendarYear,MONTH(JanOffset+1)=1),JanOffset+1,"")
Day 2 =IF(AND(YEAR(JanOffset+2)=calendarYear,MONTH(JanOffset+2)=1),JanOffset+2,"")
and so on, I need the formula and the spin button the also change the month as well as the year.
Please see attached file for details.
I'm using the formula =AVERAGE(B16:L16) to give me the average.
However I have a couple of problems with this. Firstly I would like to exclude the value zero from the average. Secondly to also ignore the lowest and highest values.
Example, if the values in the cells are 0,1,2,3,4,5,6,7,8,9,10 then the current result shows 5, by ignoring the 0 and lowest value 1 and highest value 10 the average should be 4.5.
This is for a report and on "Summary Worksheet" I want to post "Current Payment" totals IF the invoices from "Tab 3" equal the "month" in G6. Say the report is for January - if there are invoices on Tab 3 -worksheet with a January date I want to post all invoice amounts on Summary worksheet under current payment.
View 4 Replies View RelatedI'm looking for the proper way of determining the success of a forecast over time.
Forecast ranges from -25% to +25%.
I don't want an average, as it would return a 0% deviation over 2 periods.
I don't want a standard deviation as it would be deviation from an eventual mean greater than 0.
I want the result of the above to say that my average deviation is 25 basis points. Meaning I'm either high or low by 25 points or that I'm "usually" off by +/- X%
I have a file that uses dates, when a cell is in date the cell is "GREEN" but when the cell is out of date after 3 years it turns "RED". I want to add another formular so that when it gets to 2 years & 11 months the cell will go "YELLOW" for 1 month only before it turns "RED".
View 3 Replies View RelatedJust like sumif and averageif, is there a standarddeivationif?
View 1 Replies View RelatedIs there anyway to do a standard dev w/o the max + min in a range of numbers?
View 8 Replies View RelatedI have a set of data and need to get Stdev 1, Stdev 2 and Stdev 3 but i honestly not sure what are those. I have attached the file : stdev.xlsx
View 4 Replies View RelatedI am trying to learn VBA and started reading Wallenbach's book and I thought the best way to get up to speed fast was to work on some real problems.
So this is what I am trying to do.
I have a list of about 1000 stock price returns in the following format
jan 1 2008 .033
jan 2 2008 .01
jan 3 2008 -.002
jan 4 2008 -.0033
jan 5 2008 .04
What I want to do is calculate in VBA a moving 3 day standard deviation of returns. So I want the first calculation to include jan 1 - jan 3 and place the answer in the cell to the right of jan 3 return. Then move down 1 row and calculate the standard deviation using jan 2 - jan4 and place the answer in the cell to the right of jan 4 return...and so on until the last cell.
i'd like to calculate the standard deviation of different items all in the same database
If this would be the database:
a 1
a 2
b 9
a 6
b 5
b 3
c 2
c 5
a 7
Than this would be the result:
item a 2.55
item b 2.49
item c 1.50
I succeeded in doing this via a pivot table but i want to create a calculation as the result should be part of other data in another sheet.
The spreadsheet below shows the Date (Column A), Percentage (Column B), and Standard Deviation (Column C). What I would like is a macro that finds the standard deviation for all percentages of a given date, and for the output to be placed in the first cell of Column C of that given date. If a cell in Column C is not the first for a given date I would like for it to be blank.
Date Percentage Stan Dev (Output) 8/19/09 26.75% 0.77% 8/19/09 26.79%
8/19/09 28.14%
8/19/09 26.57%
8/19/09 26.40%
8/19/09 25.54%
8/19/09 26.61%
9/16/09 36.54% 3.04% 9/16/09 37.27%
[Code] .........
I was wondering what the best way to create a standard deviation graph was? I have a single row of numbers and need to make a stadard deviation graph.
I read somewhere that the analysis toolpak would be useful for this but having installed it i'm not really sure what to do next.
Cell: F6 is to represent "average weekly offering".
D2:D53: represents the Total Given Year To Date.
I need a Weekly Average for Offering, so is it possible to have a formula that can show the average weekly offering in cell F6?
i need simulate data in 10 cells with a fixed standard deviation and a fixed mean
Example: Simulating the laptime for a runner where the mean should be 50 and the standard deviation 5,
I tried typing
=50+5*RAND()*(-1^(RANDBETWEEN(1;2)))
That gives me a mean close to 50 which is good but th standard deviation is no where near 5.