Statrs provides a host of statistical utilities for Rust scientific computing.
Included are a number of common distributions that can be sampled (i.e. Normal, Exponential, Student's T, Gamma, Uniform, etc.) plus common statistical functions like the gamma function, beta function, and error function.
This library began as port of the statistical capabilities in the C# Math.NET library. All unit tests in the library borrowed from Math.NET when possible and filled-in when not. Planned for future releases are continued implementations of distributions as well as porting over more statistical utilities.
Please check out the documentation here.
Add the most recent release to your Cargo.toml
[dependencies]
statrs = "*" # replace * by the latest version of the crate.
For examples, view the docs.
If you'd like to run all suggested tests, you'll need to download some data from
NIST, we have a script for this and formatting the data in the tests/
folder.
cargo test
./tests/gather_nist_data.sh && cargo test -- --include-ignored nist_
If you'd like to modify where the data is downloaded, you can use the environment variable,
STATRS_NIST_DATA_DIR
for running the script and the tests.
This crate requires a Rust version of 1.61.0 or higher. Increases in MSRV will be considered a semver non-breaking API change and require a version increase (PATCH until 1.0.0, MINOR after 1.0.0).
Thanks for your help to improve the project! No contribution is too small and all contributions are valued.
Suggestions if you don't know where to start,
- documentation is a great place to start, as you'll be able to identify the value of existing documentation better than its authors.
- tests are valuable in demonstrating correct behavior, you can review test coverage on the CodeCov Report*, not live until #229 merged.
- check out some of the issues marked help wanted.
- look at what's not included from Math.NET's Distributions, Statistics, or related.
Clone the repo:
git clone https://github.com/statrs-dev/statrs
Create a feature branch:
git checkout -b <feature_branch> master
Write your code and docs, then ensure it is formatted:
cargo fmt
Add --check
to view the diff without making file changes.
Our CI will fmt
, but less chores in commit history are appreciated.
After commiting your code:
git push -u origin <feature_branch>
Then submit a PR, preferably referencing the relevant issue, if it exists.
Please be explicit and and purposeful with commit messages. Conventional Commits encouraged.
Modify test code
test: Update statrs::distribution::Normal test_cdf
Please allow at least one week before pinging issues/pr's.