Harvtest V1.4 š No Sign-up
order.by : An optional vector or formula to order observations (crucial for time-series data).
It is frequently used alongside other diagnostic tools like the Breusch-Pagan test (for heteroskedasticity) and the Durbin-Watson test (for autocorrelation). Related "Harvest" Software HARVTEST V1.4
It performs a t-test on recursive residuals. If the relationship is non-linear, the mean of these residuals will differ significantly from zero. Hypothesis: Null Hypothesis ( H0cap H sub 0 ): The true relationship is linear. Alternative Hypothesis ( H1cap H sub 1 ): The relationship is non-linear (convex or concave). If the relationship is non-linear, the mean of
When utilizing this test within a regression diagnostic workflow, the following parameters and outputs are typical: formula : A symbolic description of the model to be tested. When utilizing this test within a regression diagnostic
In R, the function harvtest(formula, order.by = NULL, data = list()) is used to execute the test. Key Components and Usage