BinomialVariable

$(WIKI_D Binomial).

struct BinomialVariable(T)
struct BinomialVariable (
T
) if (
isFloatingPoint!T
) {
enum isRandomVariable;
import core.stdc.tgmath : lgamma;;
size_t n;
T np;
T q;
T qn;
T r;
T g;
T b;
T a;
T c;
T vr;
T alpha;
T lpq;
T fm;
T h;
bool swap;
this();
this(size_t n, T p);
size_t opCall(RNG gen);
size_t opCall(RNG* gen);
enum size_t min;
size_t max();
}
BinomialVariable!T binomialVar(size_t r, T p)
alias binomialVariable = binomialVar

Constructors

this this(): Undocumented in source.
this this(size_t n, T p)

Members

Functions

max size_t max()
opCall size_t opCall(RNG* gen)
opCall size_t opCall(RNG gen)

Manifest constants

isRandomVariable enum isRandomVariable;

Variables

a T a;: Undocumented in source.
alpha T alpha;: Undocumented in source.
b T b;: Undocumented in source.
c T c;: Undocumented in source.
fm T fm;: Undocumented in source.
g T g;: Undocumented in source.
h T h;: Undocumented in source.
lpq T lpq;: Undocumented in source.
min enum size_t min;
n size_t n;: Undocumented in source.
np T np;: Undocumented in source.
q T q;: Undocumented in source.
qn T qn;: Undocumented in source.
r T r;: Undocumented in source.
swap bool swap;: Undocumented in source.
vr T vr;: Undocumented in source.

Examples

import mir.random;
auto rv = binomialVar(20, 0.5);
static assert(isRandomVariable!(typeof(rv)));
int[] hist = new int[rv.max + 1];
auto cnt = 1000;
foreach(_; 0..cnt)
    hist[rv(rne)]++;
//import std.stdio;
//foreach(n, e; hist)
//    writefln("p(x = %s) = %s", n, double(e) / cnt);

import mir.random.engine;
Random* gen = threadLocalPtr!Random;
auto rv = BinomialVariable!double(20, 0.5);
int[] hist = new int[rv.max + 1];
auto cnt = 10;
foreach(_; 0..cnt)
    hist[rv(gen)]++;

BinomialVariable

Constructors

Members

Functions

Manifest constants

Variables

Examples

Meta

Source