samplr is a CLI tool to randomly sample data; generating a fixed size sample of input lines with uniform probabilities.
Requires Rust to be installed.
git clone https://github.com/SteadBytes/sample.git
cd sample
cargo install --path .
Sample 15 lines from a file:
sample -n 15 things.txt
Sample 15 lines from standard input:
<things.txt | sample -n 15
Sample 15 lines from multiple files:
sample -n 15 things.txt other_things.txt
samplr uses a Reservoir Sampling algorithm to generate fixed size samples from an input stream of unknown length. For more details, see the implementation and the linked blog article.
Run unit tests:
cargo test
Run all tests (including potentially CPU intensive statistical tests):
cargo test --all-features --release