PPLH

PPLH is a domain-specific probabilistic programming language for health applications. PPLH transpiles to the PPL Dice.

Usage

To install dependencies and build, first install Rust and Emscripten, then run in a shell where emcc is available

npm install
npm run build

This will build the language parser source files and tree-sitter-pplh.wasm from grammar.js.

Note: does not work on Windows currently

Since the transpiler builds to pure JS and WebAssembly, you can serve it directly using your favorite HTTP server

python3 -m http.server

To read the sample data with and create a graph

age → aspirin → heart_attack
age → heart_attack
cholesterol → heart_attack

import "health_records.csv"

Pr(heart_attack|age,aspirin)

Probabilities can be complex with disjunction, equality, and exclusive-or operators in both the query and condition parts:

Pr(heart_attack+aspirin|(age,aspirin)+(!age,cholestrol,aspirin))
Pr(age | aspirin = cholesterol ∨ aspirin ⊕ ¬heart_attack)

Name		Name	Last commit message	Last commit date
Latest commit History 29 Commits
bindings		bindings
src		src
.gitignore		.gitignore
Cargo.lock		Cargo.lock
Cargo.toml		Cargo.toml
README.md		README.md
binding.gyp		binding.gyp
example.pplh		example.pplh
grammar.js		grammar.js
health_records.csv		health_records.csv
index.html		index.html
index_s.js		index_s.js
mimic_iii.csv		mimic_iii.csv
mimic_iii.pplh		mimic_iii.pplh
package-lock.json		package-lock.json
package.json		package.json
simpsons.csv		simpsons.csv
simpsons.pplh		simpsons.pplh
tree-sitter-javascript.wasm		tree-sitter-javascript.wasm
tree-sitter-pplh.wasm		tree-sitter-pplh.wasm
tree-sitter.js		tree-sitter.js
tree-sitter.wasm		tree-sitter.wasm