Description Usage Arguments Value
View source: R/robustregression.R
This uses Huber's psi to estimate a robust least squares fit, while at the same time using Schweppe weights to downweight leverage points in the design matrix. The algorithm is initialized using Pena-Yohai initial S-estimates.
1 |
formula |
model formula |
data |
data frame |
k |
tuning constant for outlier downweighting. defaults to 2*sqrt(p/n). |
a list
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