No repeated coordinates in random walker ensemble
i’m simulating an ensemble of random walkers in 2D in python, I set [x,y] coordinates of my walkers to be gaussian in a 2D grid, then use a rand array of -1 and +1 to move up down left right:
On-the-fly, random partition of a range of numbers [0,N] in groups of max M size
Suppose that you have a range of numbers from 0 to N that you want to randomly separate in groups of max M sequential numbers. This is easily done with a bitmap and a random number generator, but it is not space efficient for very large instances of N.
Is generating a large random number more unique than generating each digit in that number?
I’m using a PRNG (PHP’s default rand() implementation) to generate unique 16 digit numbers. Does it make sense to generate digits one by one, or the number at once?
Choosing a random integer in a range such that it doesn’t equal a particular number
Given an integer range and a number within that range, what’s a reasonably robust and efficient way to randomly select a new number within the range such that it’s not equal to the given number?
How to randomly get or find a sub-tree (include root node) from a given tree that contains n leaf-nodes
I have a non-binary tree.
I want to randomly find a “sub-trees” that are connected from root to leaf which must have at least n leaf-nodes (leaf-nodes of sub-tree must be leaf-nodes of given tree).
For example: given a tree as below
How to randomly get or find a sub-tree (include root node) from a given tree that contains n leaf-nodes
I have a non-binary tree.
I want to randomly find a “sub-trees” that are connected from root to leaf which must have at least n leaf-nodes (leaf-nodes of sub-tree must be leaf-nodes of given tree).
For example: given a tree as below
How to randomly get or find a sub-tree (include root node) from a given tree that contains n leaf-nodes
I have a non-binary tree.
I want to randomly find a “sub-trees” that are connected from root to leaf which must have at least n leaf-nodes (leaf-nodes of sub-tree must be leaf-nodes of given tree).
For example: given a tree as below
How specify acceptance criteria for randomness?
How would I express a Behavior Driven Development (BDD) acceptance criteria/story/scenario that indicates items should be random to some degree on a Home screen of an app like Instagram?
How specify acceptance criteria for randomness?
How would I express a Behavior Driven Development (BDD) acceptance criteria/story/scenario that indicates items should be random to some degree on a Home screen of an app like Instagram?
How specify acceptance criteria for randomness?
How would I express a Behavior Driven Development (BDD) acceptance criteria/story/scenario that indicates items should be random to some degree on a Home screen of an app like Instagram?