# Tagged Questions

Questions about random number generation and the properties of numbers so generated.

294 views

### Efficiently generating samples from an urn with maximum per element constraint?

I need to sample from a distribution that is a hybrid of uniform and hypergeometric in the sense that all elements are sampled uniformly until an element reaches some specified maximum observations, ...
88 views

### Restarting random number generators where you left off

I have code that uses both RandomReal and RandomInteger a number of times to produces a sequence of $n$ data sets. After ...
78 views

### RandomPoint works with a 2D ImplicitRegion but fails for any higher dimension

This is inspired by this answer which features code that I cannot get to work at all, and I tried to figure out why. It boils down to using the function RandomPoint...
119 views

### RandomVariate, MSE and Cramer-Rao bound calculation

I'm using the following code to plot the variance of a moment estimate of a parameter of Rice distribution and its' Cramer-Rao bound. First I generate $10^3$ vectors $\texttt{R}$ ($10^3$ elements ...
70 views

### Help with Multivariate ProbabilityDistribution

I wish to obtain numbers from ...
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### Converting problem into form involving Probability

I want to solve the following problem symbolically, using Probability: What is the probability of the first random variate of a set to be present more than once,...
38 views

### Generating a list of random numbers that follows a pattern

I'm a beginner to Mathematica. I'm writing a code to design a 4-bar linkage mechanism that traces a path in 2D space. I got the modelling done right, now I'm writing my own implementation of a genetic ...
29 views

### Missing Completely at Random MCAR

Many other stats packages have tests for MCAR but Mathematica doesn't seem to. Have a I missed something? If not what would a simple implementation in MMA look like. (disclaimer I'm new to MCAR ...
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### How to use Compile? Bivariate Gibbs Sampler

I am trying to use compile to speed up my Gibbs sampler. I know I can use Reap and Sow to speed up tremendously. I have a more complicated Bayesian posterior that I want to speed up with compile so I ...
74 views

### The correct assignment of probability distribution to generate random variables

I'm asking you for a help to solve a difficult (for myself) task. Now I will tell you what and why I'm trying to implement. The task is to simulate the passage of elementary particles through a ...
87 views

### Generates random number from custom multivariable probability distribution

I have the following input ...
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### Custom graph distribution

I am working with random graphs a lot. It's quite easy to describe random graph using, adjacency matrix or just a list of edges. However I am thinking that I might benefit from describing random ...
90 views

### Optimization of custom probability distibutions?

Consider the two tests: Timing[Do[RandomVariate[NormalDistribution[0.5, 0.3]], {200}]] {0.001188, Null} ...
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### Von Neumann's method to generate points uniformly distributed on a region of a n-sphere surface

I am trying to generate points uniformly distributed on a region of a single n-sphere surface (all angles in hyperspheric coordinates are between 0 and Pi/2). I decided to use von Neumann's method ...