hadr {RKUM}

Hampel's psi function

Description

##The ratio of the first derivative of the Hampel loss fuction to the argument. Tuning constants are fixed in different quintiles.

Usage

hadr(u)

Arguments

u

vector values

Value

a real value

Author(s)

Md Ashad Alam <[e-mail]>

References

Md Ashad Alam, Kenji Fukumizu and Yu-Ping Wang (2018), Influence Function and Robust Variant of Kernel Canonical Correlation Analysis, Neurocomputing, Vol. 304 (2018) 12-29.

M. Romanazzi (1992), Influence in canonical correlation analysis, Psychometrika vol 57(2) (1992) 237-259.

See Also

#See Also as gkm, hudr