Top "Average" questions

In mathematics, an average is a measure of the "middle" or "typical" value of a data set.

Calculate the average of fields in embedded documents/array

I want to calculate the rating_average field of this object with the rating fields inside the array ratings. Can …

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mongodb mongodb-query average aggregation-framework
Group and average NumPy matrix

Say I have an arbitrary numpy matrix that looks like this: arr = [[ 6.0 12.0 1.0] [ 7.0 9.0 1.0] [ 8.0 7.0 1.0] [ 4.0 3.0 2.0] [ 6.0 1.0 2.0] [ 2.0 5.0 2.0] [ 9.0 4.0 3.0] [ 2.0 1.0 4.0] [ 8.0 4.0 4.0] [ 3.0 5.0 4.0]] What would be an efficient way of averaging …

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python numpy matrix grouping average
Average Age from DOB Field - MySQL / PHP

I wasn't sure how I could calculate the average age of my contacts who all exist in a mysql table …

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mysql date average dob
Moving average in Pandas

I have a csv file with 3 columns and I want to get the moving average of 1 column. I want to …

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python pandas average rolling-average
MySQL where clause and ordering by avg() as a sub query

Although I can group and order by on an aliased sub query, I can't use the alias in a where …

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mysql subquery where average clause
Linq - calculate multiple averages in one query

I'm trying to convert some SQL queries into Linq to avoid multiple trips to the database. The old SQL I'm …

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c# sql linq average aggregates