Vector.Random
Definition
Namespace: Numerics.NET
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 10.1.0
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 10.1.0
Overload List
| Random | Constructs a new vector with normal random numbers with zero mean and unit standard deviation. |
| Random | Constructs a new vector with normal random numbers with zero mean and unit standard deviation. |
| Random | Constructs a new vector with normally distributed random numbers. |
| Random | Constructs a new vector with normally distributed random numbers. |
RandomNormal(Int32, ArrayMutability)
Constructs a new vector with normal random numbers with zero mean and unit
standard deviation.
public static DenseVector<double> RandomNormal(
int length,
ArrayMutability mutability = ArrayMutability.MutableValues
)Parameters
- length Int32
- The length of the vector.
- mutability ArrayMutability (Optional)
- Specifies how the vector's values may be changed. The default is mutable values.
Return Value
DenseVector<Double>A DenseVector<T>.
RandomNormal(Int32, Random, ArrayMutability)
Constructs a new vector with normal random numbers with zero mean and unit
standard deviation.
public static DenseVector<double> RandomNormal(
int length,
Random random,
ArrayMutability mutability = ArrayMutability.MutableValues
)Parameters
- length Int32
- The length of the vector.
- random Random
- The random number generator to use.
- mutability ArrayMutability (Optional)
- Specifies how the vector's values may be changed. The default is mutable values.
Return Value
DenseVector<Double>A DenseVector<T>.
RandomNormal(Int32, Double, Double, ArrayMutability)
Constructs a new vector with normally distributed random numbers.
public static DenseVector<double> RandomNormal(
int length,
double mean,
double standardDeviation,
ArrayMutability mutability = ArrayMutability.MutableValues
)Parameters
- length Int32
- The length of the vector.
- mean Double
- The mean of the normal distribution.
- standardDeviation Double
- The standard deviation of the normal distribution.
- mutability ArrayMutability (Optional)
- Specifies how the vector's values may be changed. The default is mutable values.
Return Value
DenseVector<Double>A DenseVector<T> with random values from a normal distribution with the specified mean and standard deviation.
Example
// Create a vector with 10 values from N(5, 2)
var v = Vector.RandomNormal(10, 5.0, 2.0);Exceptions
| Argument | length is less than zero, or standardDeviation is less than or equal to zero. |
RandomNormal(Int32, Double, Double, Random, ArrayMutability)
Constructs a new vector with normally distributed random numbers.
public static DenseVector<double> RandomNormal(
int length,
double mean,
double standardDeviation,
Random random,
ArrayMutability mutability = ArrayMutability.MutableValues
)Parameters
- length Int32
- The length of the vector.
- mean Double
- The mean of the normal distribution.
- standardDeviation Double
- The standard deviation of the normal distribution.
- random Random
- The random number generator to use.
- mutability ArrayMutability (Optional)
- Specifies how the vector's values may be changed. The default is mutable values.
Return Value
DenseVector<Double>A DenseVector<T> with random values from a normal distribution with the specified mean and standard deviation.
Example
// Create a reproducible vector with 10 values from N(5, 2)
var rng = new Random(42);
var v = Vector.RandomNormal(10, 5.0, 2.0, rng);Exceptions
| Argument | length is less than zero, or standardDeviation is less than or equal to zero. |
| Argument | random is null. |