Cache results of a heteroscedasticity test

Avoids recomputing expensive diagnostics by hashing their inputs and reusing stored results.

Usage

cachedTest(test_name, model, data, ..., use_cache = TRUE)

Arguments

test_name

Character scalar naming the diagnostic registered in .diagnostic_registry or .test_factory.

model

Fitted model object supplied to the diagnostic.

data

Data frame used to fit the model.

...

Additional arguments forwarded to the diagnostic.

use_cache

Logical scalar indicating whether cached results may be used (defaults to TRUE).

Value

The diagnostic result, either retrieved from cache or freshly computed.

Details

The cache key is created by hashing the test name, model coefficients, residuals, data, and additional arguments. When the key already exists in the cache environment the stored result is returned immediately; otherwise the diagnostic is executed and its output stored for future calls. Set use_cache = FALSE to force recomputation when the underlying model has changed.

See also

clearTestCache() resets the cache between analysis sessions.