Add ::from_distribution to build a matrix from a user-provided distribution.
This commit is contained in:
parent
fd1cbf511c
commit
8cfd89f287
@ -15,6 +15,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
|
||||
to compute the rotation matrix between two 2D **unit** vectors.
|
||||
* Add methods `.axis_angle()` to `UnitComplex` and `UnitQuaternion` in order to retrieve both the
|
||||
unit rotation axis and the rotation angle simultaneously.
|
||||
* Add functions to construct a random matrix with a user-defined distribution: `::from_distribution(...)`.
|
||||
|
||||
## [0.14.0]
|
||||
### Modified
|
||||
|
@ -1,19 +1,19 @@
|
||||
#[cfg(feature = "arbitrary")]
|
||||
use quickcheck::{Arbitrary, Gen};
|
||||
#[cfg(feature = "arbitrary")]
|
||||
use core::storage::Owned;
|
||||
#[cfg(feature = "arbitrary")]
|
||||
use quickcheck::{Arbitrary, Gen};
|
||||
|
||||
use std::iter;
|
||||
use num::{Bounded, One, Zero};
|
||||
use rand::{self, Rand, Rng};
|
||||
use rand::{self, distributions::Sample, Rand, Rng};
|
||||
use std::iter;
|
||||
use typenum::{self, Cmp, Greater};
|
||||
|
||||
use alga::general::{ClosedAdd, ClosedMul};
|
||||
|
||||
use core::{DefaultAllocator, Matrix, MatrixMN, MatrixN, Scalar, Unit, Vector, VectorN};
|
||||
use core::dimension::{Dim, DimName, Dynamic, U1, U2, U3, U4, U5, U6};
|
||||
use core::allocator::Allocator;
|
||||
use core::dimension::{Dim, DimName, Dynamic, U1, U2, U3, U4, U5, U6};
|
||||
use core::storage::Storage;
|
||||
use core::{DefaultAllocator, Matrix, MatrixMN, MatrixN, Scalar, Unit, Vector, VectorN};
|
||||
|
||||
/*
|
||||
*
|
||||
@ -234,6 +234,17 @@ where
|
||||
{
|
||||
Self::from_fn_generic(nrows, ncols, |_, _| rand::random())
|
||||
}
|
||||
|
||||
/// Creates a matrix filled with random values from the given distribution.
|
||||
#[inline]
|
||||
pub fn from_distribution_generic<Distr: Sample<N> + ?Sized, G: Rng>(
|
||||
nrows: R,
|
||||
ncols: C,
|
||||
distribution: &mut Distr,
|
||||
rng: &mut G,
|
||||
) -> Self {
|
||||
Self::from_fn_generic(nrows, ncols, |_, _| distribution.sample(rng))
|
||||
}
|
||||
}
|
||||
|
||||
impl<N, D: Dim> MatrixN<N, D>
|
||||
@ -356,6 +367,16 @@ macro_rules! impl_constructors(
|
||||
where N: Zero {
|
||||
Self::from_partial_diagonal_generic($($gargs, )* elts)
|
||||
}
|
||||
|
||||
/// Creates a matrix filled with random values from the given distribution.
|
||||
#[inline]
|
||||
pub fn from_distribution<Distr: Sample<N> + ?Sized, G: Rng>(
|
||||
$($args: usize,)*
|
||||
distribution: &mut Distr,
|
||||
rng: &mut G,
|
||||
) -> Self {
|
||||
Self::from_distribution_generic($($gargs, )* distribution, rng)
|
||||
}
|
||||
}
|
||||
|
||||
impl<N: Scalar + Rand, $($DimIdent: $DimBound, )*> MatrixMN<N $(, $Dims)*>
|
||||
|
Loading…
Reference in New Issue
Block a user