The ndarray crate provides an n-dimensional container for general elements
and for numerics.
Please read the API documentation on docs.rs
or take a look at the quickstart tutorial.
- Generic 1, 2, ..., n-dimensional arrays
- Owned arrays and array views
- Slicing, also with arbitrary step size, and negative indices to mean
elements from the end of the axis.
- Views and subviews of arrays; iterators that yield subviews.
- Still iterating on and evolving the crate
- The crate is continuously developing, and breaking changes are expected
during evolution from version to version. We adopt the newest stable
rust features if we need them.
- Performance:
- Prefer higher order methods and arithmetic operations on arrays first,
then iteration, and as a last priority using indexed algorithms.
- Efficient floating point matrix multiplication even for very large
matrices; can optionally use BLAS to improve it further.
The following crate feature flags are available. They are configured in
your Cargo.toml.
serde
- Optional, compatible with Rust stable
- Enables serialization support for serde 1.x
rayon
- Optional, compatible with Rust stable
- Enables parallel iterators, parallelized methods and
par_azip!.
blas
- Optional and experimental, compatible with Rust stable
- Enable transparent BLAS support for matrix multiplication.
Uses
blas-src for pluggable backend, which needs to be configured
separately.
[dependencies]
ndarray = "0.14.0"
How to enable blas integration. Depend on blas-src directly to pick a blas
provider. Depend on the same blas-src version as ndarray does, for the
selection to work. A proposed configuration using system openblas is shown
below. Note that only end-user projects (not libraries) should select
provider:
[dependencies]
ndarray = { version = "0.14.0", features = ["blas"] }
blas-src = { version = "0.6.1", default-features = false, features = ["openblas"] }
openblas-src = { version = "0.9", default-features = false, features = ["cblas", "system"] }
For official releases of ndarray, the versions are:
ndarray |
blas-src |
openblas-src |
|---|
| 0.14.0 |
0.6.1 |
0.9.0 |
| 0.13.0 |
0.2.0 |
0.6.0 |
| 0.12.* |
0.2.0 |
0.6.0 |
| 0.11.* |
0.1.2 |
0.5.0 |
See RELEASES.md.
Dual-licensed to be compatible with the Rust project.
Licensed under the Apache License, Version 2.0
http://www.apache.org/licenses/LICENSE-2.0 or the MIT license
http://opensource.org/licenses/MIT, at your
option. This file may not be copied, modified, or distributed
except according to those terms.