median

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Taking median of calculation in SQL Server

MyTable in SQL Server contains _TimeStamp, Column1, Column2, and Column3, which have the following values:[详细]

2023-01-20 10:06 分类：问答
Calculate median for each subject with update on ties?

I have data which looks like this (this is test data for illustration): test <- matrix(c(1, 1, 1, 2, 2, 2 , 529, 528, 528, 495, 525, 510,557, 535, 313,502,474, 487 ), nr=6, dimnames=list(c(1,2,3,4[详细]

2023-01-20 05:14 分类：问答
Optimal median of medians selection - 3 element blocks vs 5 element blocks?

I\'m working on a quicksort-variant implementation based on the Select algorithm for开发者_JS百科 choosing a good pivot element. Conventional wisdom seems to be to divide the array into 5-element bloc[详细]

2023-01-19 07:56 分类：问答
How To Get the Median Of n odd elements using quicksort?

Can anyone explain how to improve the quicksort algorithm for finding the median of n odd numbers and what will be the worst case scenario 开发者_Python百科for that algorithm? Please help. http://en.w[详细]

2023-01-19 00:07 分类：问答
Median Algorithm in O(log n)

How can we remove the median of a set with time complexity 开发者_如何学编程O(log n)? Some idea?If the set is sorted, finding the median requires O(1) item retrievals.If the items are in arbitrary seq[详细]

2023-01-15 03:34 分类：问答
Incremental median computation with max memory efficiency

I have a process that generates values and that I observe. When the process terminates, I want to compute the median of those values.[详细]

2023-01-10 01:55 分类：问答
Compute median of column in SQL common table expression

In MSSQL2008, I am trying to compute the median of a column of numbers from a common table expression using the classic median que开发者_JS百科ry as follows:[详细]

2023-01-06 20:00 分类：问答
Medians of upper and lower halves of a vector

I am trying to compile an Octave .oct function to calculate the medians of the upper and lower \"halves\" of a sorted vector which will vary in length e.g. for an odd length vector such as [5,8,4,6,7][详细]

2023-01-06 15:51 分类：问答
When to use geometric vs arithmetic mean?

So I guess this isn\'t technically a code question, but it\'s something that I\'m sure will come up for other folks as well as myself while writing code, so hopefully it\'s still a good one to post on[详细]

2023-01-06 05:40 分类：问答
How to calculate median of a Map<Int,Int>?

For a map where the key represents a number of a sequence and the value the count how often this number appeared in the squence, how would an implementation of an algorithm in java look like to 开发者[详细]

2023-01-03 11:32 分类：问答