# Questions tagged [sorting]

Questions on the sorting/ordering functions of Mathematica (Sort, SortBy, Ordering, etc.).

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### Ordering Problem With VoronoiMesh

Imagine I want to model 2D cells moving in a tissue. Consider, as an example, Lloyd's relaxation algorithm. Using VoronoiMesh I'm able to mimic some cell movement. ...
32 views

### Sort a nested Association by another Association

I have a nested association of numerous pixel values sorted by sample date (e.g. 20190422C) and futher by a strain percentage (e.g. 0, 30, 50). I want to sort it even further using and Association of ...
88 views

### How do you reorder a sublist of strings, within a list?

I have a list that looks like this: ...
378 views

### Inserting an integer into a sorted list

I'm wondering if inserting an integer into a sorted list (in a way that the list remains sorted) can be performed in Mathematica in some fancy way in $\log(N)$ time?.. The question was asked here, ...
190 views

### Best way to insert element into an ordered list at the correct position?

Suppose I have an ordered list orderedList and I want to write some code that will involve regularly inserting new elements into ...
26 views

### Arranging terms by the values of numerical coefficients

I have a list with elements of the form myList = {c1 F1, c2 F2, c3 F3, ...} where c1, c2, ... are explicitly integers, and ...
57 views

### Resorting nested list A according to nested list B

How can sort nested list according to each other? e.g. I have the following list: ...
107 views

### How to group together numbers in a list by the value of their tens digit?

The line Table[Prime[n],{n,1000}] produces the list of first 1000 primes. Given this list how can the values be grouped by the values of their tens digit? i.e. how ...
140 views

### sorting eigenvectors of a final combined matrix

I have two matrices m1 and m2 as below: ...
486 views

### How can I sort the polynomial by the degree of $x$

f1 = a x^2 + b x + c + x^3 (* a x^2+b x+c+x^3 *) f1 /. x -> (x - a/3) // Expand (* (2 a^3)/...
103 views

### Sorting exponential numbers

I want to sort some exponential numbers like {2^2,3^3,4^2} and i want The result {2^2,4^2,3^3}. But Mathematica Sort function apply's the powers in the result and return's {4,16,27}. How can i get the ...
31 views

### How to sort a distance matrix in mathematica

I have the following code which results in the heatmap shown: ...
71 views

### Unique matrix ID and fast checking

I have the following problem : I have a programm which can generate a lot of 3x3 matrices whose elements take integer values in [-3;3], example :{{1,2,3},{-3,0,-2},{1,1,1}}. Each time my programm ...
116 views

### Sorting a sparse matrix so that non-empty rows place on top

I have a $n$ by $2$ matrix that has binary values(0,1) as its entry. For example m={{1,Null},{Null,0},{Null,Null},{0,0},{1,0},{0,1}} I want it to be sorted ...
42 views

### Sort Stocks by MarketCap

If I correctly understand, here I have all the existing companies listed in every market and identified by each real name: ...
46 views

### Why doesn't Sort work in this case ? (Only numerical values)

Context I want to interpolate a complicated symmetric function f of 2 variables x and y defined by some numerical integral involving Bessel functions. Since computing the integral itself is a bit ...