NDProb
- Description:
NDArray Probability & Random Module Uses Cryptographically Strong Pseudo-Random Number Generator (CSPRNG). All functions return a new NDArray instance.
- Source:
Methods
(static) bernoulli(shape, popt, dtypeopt) → {NDArray}
- Description:
Bernoulli distribution (0 or 1 with probability p).
- Source:
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
shape |
Array | |||
p |
number |
<optional> |
0.5
|
Probability of success (1). |
dtype |
string |
<optional> |
'int32'
|
Returns:
- Type
- NDArray
(static) exponential(shape, lambdaopt) → {NDArray}
- Description:
Exponential distribution: f(x; λ) = λe^(-λx). Inverse transform sampling: x = -ln(1-u) / λ.
- Source:
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
shape |
Array | |||
lambda |
number |
<optional> |
1.0
|
Rate parameter. |
Returns:
- Type
- NDArray
(static) normal(shape, meanopt, stdopt, dtypeopt) → {NDArray}
- Description:
Normal (Gaussian) distribution using Box-Muller transform.
- Source:
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
shape |
Array | Dimensions of the output array. |
||
mean |
number |
<optional> |
0
|
Mean of the distribution. |
std |
number |
<optional> |
1
|
Standard deviation. |
dtype |
string |
<optional> |
'float64'
|
Data type. |
Returns:
- Type
- NDArray
(static) poisson(shape, lambdaopt) → {NDArray}
- Description:
Poisson distribution using Knuth's algorithm. Note: For very large lambda, this becomes slow; but for most use cases it's fine.
- Source:
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
shape |
Array | |||
lambda |
number |
<optional> |
1.0
|
Mean of the distribution. |
Returns:
- Type
- NDArray
(static) random(shape, lowopt, highopt, dtypeopt) → {NDArray}
- Description:
Uniform distribution over [low, high).
- Source:
Parameters:
| Name | Type | Attributes | Default | Description |
|---|---|---|---|---|
shape |
Array | Dimensions of the output array. |
||
low |
number |
<optional> |
0
|
Lower boundary. |
high |
number |
<optional> |
1
|
Upper boundary. |
dtype |
string |
<optional> |
'float64'
|
Data type. |
Returns:
- Type
- NDArray