# nanostat
Like ministat, but smaller?
A Rust library and CLI tool for evaluating whether two or more sets of measurements are statistically different. It does
this by performing a *Welch's t-test* at a particular confidence level, making it suitable for small sets of
measurements (e.g., multiple runs of a benchmark). It's inspired largely by FreeBSD's `ministat` (written by
Poul-Henning Kamp).
```
$ nanostat examples/iguana examples/leopard examples/chameleon
examples/leopard:
Difference at 95% confidence!
643.50 > 300.00 ± 293.97, p = 0.026080480978720635
examples/chameleon:
No difference at 95% confidence.
```
## Install
```
cargo install nanostat --features cli
```
## License
Copyright © 2021 Coda Hale
Distributed under the Apache License 2.0 or the MIT license.