Description Usage Arguments Value
This estimates the location-scale model as described in Heagerty and Pepe (1999) using the Newton-Raphson method. The location and scale formulas must have the same outcome, but they may have different predictors.
1 2 | sp_locscale(formula.location, formula.scale, data, weights, tol = 1e-06,
maxit = 100)
|
formula.location |
Formula specifying the model for the location |
formula.scale |
Formula specifying the model for the scale |
data |
Data used to estimate the model |
weights |
Weights applied to the estimating equations |
tol |
Convergence tolerance |
maxit |
Maximum number of iterations |
A list containing the parameter estimates, the convergence indicator, and residuals
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