# Tagged Questions

The tag has no usage guidance.

66 views

### Consecutive generation of subsets

It is well known that the array of subsets of even small set is very big. This leads to problems with machine memory. Is there an effective way to generate subsets sequentially?
68 views

### Find independent vertex sets

I'm trying to find all independent vertex sets for a given graph. Note that they may not be maximal independent sets. There is a function in Mathematica called ...
337 views

### Efficient way to make subsets of list with placeholders

I have an arbitrary list of unique elements: lst = {a, b, c, d} Documentation allows finding subsets with same number of elements, say ...
68 views

### Create an adequate 'training set' to train a ClassifierFunction which performs the role of the built-in SubsetQ

I am trying to "grow" my own SubsetQ function using Machine Learning methods. My cSubsetQ when given two lists (listA and listB)...
36 views

### Choosing sets from Subsets[list] part 2

Piggybacking off of this question, say if I wanted to exclude sets which weren't the union of elements of the list of lists. For example: ...
160 views

### Choosing sets from Subset[list]

Say I have a set, S, and I take Subsets[S] (the power set of S). For example: S={a,b,c} Subsets[S]={{}, {a}, {b}, {c}, {a, b}, {a, c}, {b, c}, {a, b, c}} How can ...
151 views

### Refining subset relations

People who do combinatorics (like me) are often faced with the following problem: For a list of combinatorial objects (vectors, permutations graphs,etc.), we know what multi-set of values it ...
108 views

### How to efficiently find all sets of primes that add to a given number?

For large numbers the naive approach falls down: Select[Subsets[Range[1, 4]], PrimeQ@Total@# &] {{2},{3},{1,2},{1,4},{2,3},{3,4},{1,2,4}} ...
687 views

### How to delete subsets quickly?

I have some data like this: ...
113 views

### Efficient extraction of a subset

The context is molecular dynamics. The data is in the format (index_1, index_2, distance). The goal is to find all of the distances to the neighbors of point index_0 and to present a set listing the ...
134 views

### calculating subsets of a matrix (L=40X40)

I need to calculate all $k$-possible subsets$(k:1,L)$ of matrix with size $L$. I am using subset function as following, ...