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Questions tagged [stdev]

Returns the statistical standard deviation of all values in the specified expression.

STDEV is used when the group of numbers being evaluated are only a partial sampling of the whole population. The denominator for dividing the sum of squared deviations is N-1, where N is the number of observations (a count of items in the data set). Technically, subtracting the 1 is referred to as "non-biased.

https://msdn.microsoft.com/en-us/library/ms190474.aspx

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How to use STDEV over() in SQL Server 2017 Express?

I am trying to get the STDEV of MCW_NM column but I want it to be STDEV of all rows not per group by BLADEID. But in Variance_Blade_MCW I need it to be grouped by BLADEID. I have tried over() but I get this error: Column…
Jervs
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Using STDEV.S with VLOOKUP, or alternate solutions

In Excel, I have two columns. One has a category name and the other has a number against the category like this: Category List What I'm trying to do is get the standard deviation of the points for each individual category, in a 3rd column. For…
Casy.M
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Error when using UNPIVOT in SQL Server

I have the following query: SELECT STDEV(Value) as Value, TimeOfTest as Date FROM myTable unpivot ( value for col in (WS1, WS2, WS3, WS4, WS5, WS6, WS7, WS8, WS9, WS10, WS11, WS12, WS13, WS14,…
N. Dubois
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SQLite StDev function call through C#

I need to calculate StDev in my application. Its a Windows 8.1 application with SQLite DB backend.StDev(Column) is the function available and it returns the StDev value when i run the query directly through Visual Studio SQLite toolbox window. But,…
Raj
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Standard Deviation in a Powerpivot

I'm moving my coworker's static data to a powerpivot that updates daily and is connected to an access database. I've been able to move all of it just fine, except for the standard deviation part. I need to find the standard deviation of the calls…
Nanjeanie
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how to calculate standard deviation from different colums in shell script

I have a datafile with 10 columns as given below ifile.txt 2 4 4 2 1 2 2 4 2 1 3 3 1 5 3 3 4 5 3 3 4 3 3 2 2 1 2 3 4 2 5 3 1 3 1 2 4 5 6 8 I want to add 11th column which will show the standard deviation of each…
Kay
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How can I find and pass a cell reference into the StDev.P command in Excel 2010?

I would like to pass a cell reference into the STDEV.P function in Excel, but when I do this I keep getting a #DIV/0 error. I have two columns in Excel. Column A contains a list of dates starting Jan-1-2012 and going to the current date. Column B…
wythes
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NaN and NA produced when using describe_across function

I am trying to get some descriptive stats from my data, however, I keep on getting Nan and NA when I run the code. this is my code describe_across(mediation_df_total, variables = c(friendship, engagement, satisfaction), functions = list(avg = mean,…
Lyvonne
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How to remove outliers in SQL using Standard Deviation?

I currently have a dataset that contains transactional information, including dates, an amount field, and descriptive fields. I am looking to do simple statistical analysis (mean, median, etc.), but need to remove outliers first. The issue I'm…
Josh Berner
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STDEV ARRAYFORMULA in Google Sheets

since STDEV is not supported under ARRAYFORMULA there is either draggable solution: or hardcoded solution: but neither of them is dynamically scalable so is there any workaround? from a quick google search, it looks like no one dared to dream of…
player0
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Standard deviation error bars from seaborn seem too small

I have originally used numpy function .std on my dataframe to obtain standard deviation and plot it using matplotlib. Later, I have tried making the same graph using seaborn. The two graphs looked close enough until I overlayed them and found that…
Lucie
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Standard deviation calculation where sometimes there is no data

I want cell W4 to be the standard deviation of range C to V. Some of the rows will be empty and thus not able to calculate a standard deviation. I would like to return a blank cell or better to delete the row. For i = 1 to 1000 …
Lelung
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Historical Volatility from Prices of many different bonds in same column

I have a csv file with bid/ask prices of many bonds (using ISIN identifiers) for the past 1 yr. Using these historical prices, I'm trying to calculate the historical volatility for each bond. Although it should be typically an easy task, the issue…
user16708102
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Issue with Pine Script stdev() function

I am a little bit confused on how stdev() function in TradingView's script language works. I am trying to write a C# code that converts the following code block but I am getting different results: typical=hlc3 f = log( typical ) - log( typical[1]…
Ali
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Mean function python, doing average and add stdev in a graph

i've a problem in python, i hope you can help me to solve it. I've a list of data, like the following: 01/31/2021 08:51:41.222 5777 40.26 01/31/2021 08:51:41.441 5802 40.26 01/31/2021 08:51:41.644 5786 40.26 01/31/2021 08:51:41.847 5793…
Zeugma
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