estimint 1.4.4

EIR Estimation using Machine learning interventions

estiMINT

Package for EIR (Entomological Inoculation Rate) estimation using machine learning.

It estimates EIR from prevalence, converts between EIR and human biting rate (including the effect of changes in mosquito density), and turns a bednet specification (net type and resistance level) into the dn0 killing parameter.

Installation

pip install estimint            # core: inference only (numpy, pandas, xgboost, scipy)

Optional extras, by use case:

pip install "estimint[train]"   # data prep + model training (duckdb, scikit-learn, pyarrow)
pip install "estimint[viz]"     # plotting (matplotlib)
pip install "estimint[scenarios]" # run_scenarios pipeline (stateMINT emulator)
pip install "estimint[all]"
pip install "estimint[dev]"     # test/lint/type-check toolchain

The run_scenarios pipeline also needs the stateMINT emulator (Python 3.12+). For now it comes from the mamba2-train branch. With uv this is handled for you:

uv sync --extra scenarios

With plain pip, install stateMINT from the branch yourself, then estiMINT:

pip install "git+https://github.com/mrc-ide/stateMINT.git@mamba2-train"
pip install estimint

For local development with uv:

uv sync --all-extras --dev

Data & retraining pipeline

All training data lives in datasets/estimint_simulations_y9.parquet. Two model folders derive their views from it and train:

datasets/               # training data (see datasets/README.md)
models/
  prevalence/           # prev_y9 -> EIR     (estiMINT_model.pkl)
  hbr/                  # HBR<->EIR sub-models (estiMINT_HBR_model.pkl, estiMINT_EIR_to_HBR_model.pkl)

Retrain a model end-to-end, e.g. the prevalence model:

python models/prevalence/prepare.py        # derive the training view from the parquet
python models/prevalence/train.py          # train -> estiMINT_model.pkl + metrics/ + plots/

The deployed models shipped with the package live in src/estimint/data/ and are loaded by name (prevalence, hbr, eir_to_hbr). This is independent of the training pipeline above.

API Reference

Inference

from estimint import load_xgb_model, run_xgb_model
import pandas as pd

# Load a bundled model by name: "prevalence", "hbr", or "eir_to_hbr"
model = load_xgb_model("prevalence")

# Prepare input data
new_data = pd.DataFrame({
    "dn0_use": [0.5],
    "Q0": [0.3],
    "phi_bednets": [0.6],
    "seasonal": [1],
    "itn_use": [0.7],
    "irs_use": [0.2],
    "prev_y9": [0.15]  # or "prevalence"
})

# Run prediction
eir_predictions = run_xgb_model(new_data, model)
print(f"Predicted EIR: {eir_predictions[0]:.2f}")

Using Global Model

from estimint import load_xgb_model, run_xgb_model, set_global_model

# Set global model once
model = load_xgb_model("prevalence")
set_global_model(model)

# Run predictions without passing model
predictions = run_xgb_model(new_data)  # Uses global model

Bednet to dn0

Turn a bednet specification (a mix of net types and an insecticide resistance level) into the dn0 covariate, the probability a mosquito dies on contact, along with total ITN usage.

from estimint import calculate_dn0, net_types

net_types()                      # ['pyrethroid_only', 'pyrethroid_pbo', 'pyrethroid_ppf', 'pyrethroid_pyrrole']
res = calculate_dn0(0.5, py_only=0.4, py_pbo=0.3, py_pyrrole=0.2, py_ppf=0.1)
res.dn0, res.itn_use             # weighted dn0, total net usage

Run scenarios

run_scenarios runs the whole pipeline in one call. You give it a list of scenarios and get back a DataFrame. For each scenario it works out the bednet killing effect, estimates the EIR (from prevalence, from biting rate, or taken directly), optionally adjusts for a change in mosquito density, then runs the stateMINT emulator forward to the prevalence and cases trajectories.

This needs the stateMINT package installed as well as estiMINT. estiMINT only loads it when you call run_scenarios, and the model weights download from HuggingFace.

from estimint import run_scenarios

scenarios = [
    dict(name="PBO nets, prevalence input, 60% more mosquitoes",
         input="prevalence", value=0.30,
         res_use=0.55, py_pbo=0.85,
         Q0=0.90, phi=0.85, seasonal=1, irs=0.40, lsm=0.0,
         mosquito_delta=0.60),
    dict(name="Biting rate input, mixed nets",
         input="hbr", value=250000.0,
         res_use=0.45, py_only=0.30, py_ppf=0.20,
         Q0=0.80, phi=0.82, seasonal=0, irs=0.0),
    dict(name="EIR supplied directly, no nets",
         input="eir", value=20.0,
         Q0=0.88, phi=0.78, seasonal=1, irs=0.60),
]

df = run_scenarios(scenarios)
print(df[["name", "eir_baseline", "eir_final", "prev_y9", "cases_endline"]])

Every scenario needs input and value, plus Q0, phi, seasonal and irs. lsm and routine default to 0; irs_future defaults to irs. Current nets: give res_use and a net-type usage mix (py_only, py_pbo, py_pyrrole, py_ppf shares), or leave the net keys out for none. Future nets: give net_type_future + itn_future + res_future to switch net type; omit them and the current mix carries forward (at res_future if given), or set itn_future=0 to remove nets. mosquito_delta only applies when input is "prevalence".

The returned DataFrame has one row per scenario. Alongside the inputs it gives the estimated EIR (eir_baseline, and eir_final after any mosquito-density change) and the stateMINT output. That output is year-9 prevalence (prev_y9), endline prevalence and cases, and the full 157-step prevalence and cases series. What you do with it is up to you.

The estimint.scenarios module is also where the simulation-based inference and experiment code will go.

Utility Functions

from estimint import (
    r2, rmse, mse, mae, median_ae, mae_rel, rmsle, smape,
    fit_qmap_w, predict_qmap_w, scale_pos
)

# Calculate metrics
y_true = [1, 2, 3, 4, 5]
y_pred = [1.1, 2.2, 2.9, 4.1, 4.8]

print(f"R²: {r2(y_true, y_pred):.4f}")
print(f"RMSE: {rmse(y_true, y_pred):.4f}")
print(f"MAE: {mae(y_true, y_pred):.4f}")

# Quantile mapping calibration
cal = fit_qmap_w(y_pred, y_true)
y_calibrated = predict_qmap_w(y_pred, cal)

Data Processing

These functions need the training extras. Install them with pip install "estimint[train]", which adds duckdb and scikit-learn.

from estimint import load_and_filter, make_value_weights, strata_and_split

# Load and filter parquet data
result = load_and_filter("data.parquet", thr_lo=0.02, thr_hi=0.95)
df = result["DT"]
df_excluded = result["DT_excluded"]

# Create inverse-frequency weights
weights = make_value_weights(df["eir"].values, digits=3)

# Stratified split
df["eir_log10"] = np.log10(df["eir"])
df = strata_and_split(df, k_strata=16, seed=42)

Testing

uv sync --extra dev          # or: pip install -e ".[dev]"
uv run pytest                # or: pytest

This covers the metric and utility helpers, the EIR estimators (prevalence, HBR and direct EIR), the mosquito-density HBR pipeline, and the bednet calculation.

CI and releases

The test suite runs on every push and pull request across Python 3.10 to 3.14, defined in .github/workflows/tests.yml.

Releases publish to PyPI from .github/workflows/publish.yml. It builds with uv build and uploads with uv publish using PyPI trusted publishing, so no token is stored. To cut a release, bump version in pyproject.toml and publish a GitHub Release. The first time, register this repository as a trusted publisher in the PyPI project settings.

Key Differences from R Version

1. File format: Models saved as .pkl (pickle) instead of .rds
2. Data handling: Uses pandas instead of data.table
3. Plotting: Uses matplotlib instead of ggplot2
4. Global model: Use set_global_model() / get_global_model() instead of .GlobalEnv

License

MIT License