I have a worksheet containing data in columns. For each column, I would like to calculate the standard deviation of the mid-95% of the values i.e. 2.5th percentile to 97.5th percentile (to reduce the effect of "outliers").
So first of all I calculate the values of the 2.5th and 97.5th percentiles:
If I have 50 data points sorted in order (oldest --> newest), how do I do a stdev function that will only pull the 24 most recent points?
Essentially, I have 14 columns with 50 data points each. At the end of the list (or maybe beginning - under the column header) I want to do a stdev calculation referring to the most recent 24 points and a second for the most recent 36 points.
I'm using the following formula to calculate the % relative standard deviation of 5 values:
ROUND((STDEV(C8:C12)/AVERAGE(C8:C12)*100),6)
where C8 through C12 are all 3.48.
I was surprised to see the result of 0.000002, and not 0.000000. This formula seems to be accurate to 6 decimal places when using 5 values that are not all the same. When they are the same, I get this small discrepancy in the 6th decimal place. I attempted to troubleshoot by inspecting C8 through C12. The values were typed in as seen above (3.48) and the cell formatting is set to 2 decimals in each of these cells, so the cells themselves shouldn't be contributing to the issue.
I have a set of values. #N/A413636363632. The #n/a is there on purpose for charting reasons. How do I calculate the stdev of that range? i.e. ignoring the error?
I'd like to calculate the standard deviation and mean of a whole load of data. Unfortunately it has some errors, FALSE values, blank cells and zeroes I'd like to exclude. Calculating the average is no problem as the AVERAGEIF function works fine, but there is no equivalent for STDEV. The (array) formula
STDEV(IFERROR(E29:E32,FALSE))
ignores the cells with errors and calculates the SD, and the (array) formula
STDEV(IF(E29:E32>0,E29:E32,FALSE))
ignores the cells with a value of 0 in them and calculates SD.
The problem is the blank cells in the range that I am calculating (M2:M25). Everything is alright if there were no blank cells in M2:M25. If there were any blank cells, however, the STDEV was wrong (the countifs part was correct). It treated the blank cells as zero.
I need to calculate a Stdev and Average based on a specific range. However, my range is not constant in the time. For instance, today I may need to calculate these functions based on 30 numbers, but tomorrow on 25 or 15 or 50...
Is there a way to automate this process by changing the number of data points to include in the range in one single cell and avoid manually adjusting the range in accordance with needed data points?
In other words, I would like to change the value, let's say in Cell A1 from 30 to 50 and then Excel would re-calculate the StDev and Average based on 50 data points and not 30. Is that possible?
I have a list of numbers and i want to calculate avg and stdev but i do not want "zeros" or "blanks" to enter into the calculations. I have a formula for avg but i need one for stdev.
Id like to apply a formula, any formula to an entire column if it contains data, and incorporate the original data in the calculation and then replace the original data with the result. I don't want to have to create new columns.
I'm using this to fix up database results; a common problem is dates in dot format e.g. 14.11.2008
All I have so far is an autofill formula that overwrites everything. Can someone help me with the rest? I'm using the SUBSTITUTE function to replace the dots '.' with slashes '/'
Sub Create_formula_result()
Dim Limit As Long Dim r As range Set r = range("A1")
I want the user the be able to pick a number. This number corresponds to a table value. The formula needs to take the value in the adjacent cell from the picked number and run a calculation on it.
For example, if the user picks 7, it will select the adjacent value to 7 in a table for use in a calculation in another cell.
I have a cell with two parts of data which looks like this 21A (5.5) now 21A is a location plot number and the (5.5) is the area in rods of the plot.
Now I need to calculate the cost of this plot by multiplying the number of rods by the cost per rods, so is there a way of just using the number in the brackets in a sum and ignoring the rest of the information, now I know I could just make another cell with the 5.5 bit in it but it makes the spread sheet too complicated and wide
In the attached excel sheet see the sample example tables 1.1.1 and 1.1.2. I have to use it for official purpose and my manger has given this task to complete it. I cannot even compare the forumlas and make it same for all the tables available.
East Item # Cases in East Dropped 1 Pending Wave 1 - Qty Dropped 2 Wave - 2 Qty Dropped 3
[Code]...
I have above data where in I need to formula to calculate the 428 in dropped 1 should get calculated in Dropped 2 & dropped 3 as per the plan in wave 1 & wave 2
I'm using Excel 2003. I have about 190 rows that I use on any given day to enter start times & end times. I calculate the difference in Column E. Is there a formula that will calculate the average time as I enter them in the rows? Some days may have only 100 entries, other days may have as many as 190. I don't want to keep adjusting the average formula for column E.
I've found myself having to use a spreadsheet to calculate some acoustics problems, (problematic frequencies, called modes, in orders ranging from 0,1,2,3....).
Ideally what I want to be able to do is simply to get Excell to calculate all the possible combinations of these modes.
A combination could be: 000 011 101 110 111 012 143 etc.
Obviously this is a nightmare to input by hand, is there any kind of function I can use to help with this process?
Also these frequencies only need to be calculated up to a certain point, so is it possible I could also instruct the cell to only display a value if it is less than a value in another cell?
I have a data set that contains a repeating cycle. I want excel to find the first and second occurrence of the data crossing the zero axis and then report the time between the zero crossings. The data is not purely in ascending or descending order and often just changes from positive to negative or negative to positive without hitting the actual 0 point.
I am trying to create a sheet which will automatically calculate data based on laid down criteria.The criteria are as follows:
Cab Type in cell () Indica
If the value of cell () is less than or equal to 40Km then cell (B3) will be 400.
For every extra km above 40 the cell value in cell (B2) will be extra km done multiplied by 8 in cell (D2)
If the value of cell () is greater than 40 but less than or equal to 80 then cell (B3) will be 800
For every extra km above 80 the cell value in cell () will be extra km done multiplied by 12 in cell (D2) Cab Type in cell () Indego
If the value of cell () is less than or equal to 40Km then cell (B3) will be 600.
For every extra km above 40 the cell value in cell (B2) will be extra km done multiplied by 14 in cell (D2) If the value of cell () is greater than 40 but less than or equal to 80 then cell (B2) will be 1200
For every extra km above 80 the cell value in cell (B2) will be extra km done multiplied by 16 in cell (D2)
Ther are about 5 different types of cabs in the sheet.
Cab Type Provided Total KM run Basic Amount Extra km
What I want to achieve is as under:
1. If value of cell A1 = Indica and value of cell B2 is entered as 40
Then the values of cells (C2:e2) should populate automatically as 400, 0, 400
2. If value of cell A3 = Indica and value of cell B3 is entered as 40
Then the values of cells (C3:e3) should populate automatically as 400, 40, 440
I am a teacher and have a recurring problem when trying to sort data in excel. The problem involves national curriculum sub levels. For those not familiar with these levels, there is a main level then 3 sub levels. The problem is that they are counter intuative to the way excel sorts data. The sub levels work like this:
4a - highest 4b 4c 3a 3b 3c 2a 2b 2c - lowest
There are lower and higher levels, but you get the idea. If I have a set of pupil data that I want to sort into decending order, I find it difficult in Excel. E.g.
At the moment I manually complete this. E.g. for Mary the Sub levels progress required would be 4, as there are 4 sub levels between 3b and 4a. For Joe it would be 3 as there are 3 sub levels between 3a and 4a, etc. Is there a quick way to get excel to calculate this.
I am struggling to begin designing a program to use for quoting sheet metal parts. We buy three types of material in 9 different thickness. The material is purchased by weight but I sell it by square foot.
I tried a few training exercises using macros but I dont believe macros is the proper function to achieve my output.
I have a vacation data of my company. I want to calculate difference between two dates (relieving date & rejoining date) after excluding holiday(which I will decide as per my company policy) also note that now i m in gulf country hence here Friday is weekly off not Sunday.
I have two excel files that I am trying to gather information from to calculate the average $/hr earned by employees. The first file, which is currently called "Book 1" is generated by a different VBA code, the other "Employee Hour Output" is generated by our time clock program. What I am trying to do is have the script run from the PERSONAL workbook and look in the Employee Hour Output. In column B there are Employee names, for each employee that worked, there is a list of invoice numbers located in column E.
The code needs to see which invoice numbers each employee worked on then compare that to the $/HR earned from that job in the Book1 workbook. Then based on all the jobs worked, calculate the average $/HR that employee earned in the given time period. This information needs to be displayed with the employee name and $/HR in the first available row of columns H and I of the Book1 workbook.
I have a data table with incidents in which one column is equipment number and one is data of occurrence. I now need to calculate how long ago the same equipment number occurred.
