RandomHelper

plham.util.RandomHelper

Direct Known Subclasses:

JSONRandom
```
public class RandomHelper
```
A helper class adding more utilities to Random.

Field Summary

Fields
Modifier and Type Field and Description

Gaussian g

Random random

Fields
Modifier and Type	Field and Description
`Gaussian`	`g`
`Random`	`random`

Constructor Summary

Constructors
Constructor and Description

RandomHelper(Random random)

Constructors
Constructor and Description
`RandomHelper(Random random)`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static void`	`main(Rail<String> id$7)`
`Boolean`	`nextBoolean()`
`Boolean`	`nextBoolean(Double p)`
`Double`	`nextDouble()`
`Double`	`nextDouble(Double max)`
`Double`	`nextExponential(Double lambda)` Get a sample from an exponential distribution, whose expected value is `lambda`.
`Float`	`nextFloat()`
`Float`	`nextFloat(Float max)`
`Double`	`nextGaussian()`
`Int`	`nextInt(Int max)`
`Long`	`nextLong(Long max)`
`Double`	`nextNormal(Double mu, Double sigma)` Get a sample from a normal distribution, whose mean `mu` and variance `sigma`^2.
`Double`	`nextUniform(Double min, Double max)` Get a sample from a uniform distribution between `min` and `max`.

Field Detail
- random
```
public Random random
```
- g
```
public Gaussian g
```

Constructor Detail
- RandomHelper
```
public RandomHelper(Random random)
```

Method Detail

nextBoolean
```
public Boolean nextBoolean()
```

nextBoolean
```
public Boolean nextBoolean(Double p)
```

nextDouble
```
public Double nextDouble()
```

nextDouble
```
public Double nextDouble(Double max)
```

nextFloat
```
public Float nextFloat()
```

nextFloat
```
public Float nextFloat(Float max)
```

nextInt
```
public Int nextInt(Int max)
```

nextLong
```
public Long nextLong(Long max)
```

nextGaussian
```
public Double nextGaussian()
```

nextUniform

public Double nextUniform(Double min,
                                   Double max)

Get a sample from a uniform distribution between min and max.

nextNormal

public Double nextNormal(Double mu,
                                  Double sigma)

Get a sample from a normal distribution, whose mean mu and variance sigma^2.

nextExponential
```
public Double nextExponential(Double lambda)
```
Get a sample from an exponential distribution, whose expected value is lambda. Cf: the standard notation may prefer the expected value to be 1 / lambda, but here it is lambda so lambda can take even zero.

main

public static void main(Rail<String> id$7)

Class RandomHelper

Field Summary

Constructor Summary

Method Summary

Field Detail

random

g

Constructor Detail

RandomHelper

Method Detail

nextBoolean

nextBoolean

nextDouble

nextDouble

nextFloat

nextFloat

nextInt

nextLong

nextGaussian

nextUniform

nextNormal

nextExponential

main