ind.contrib: Individual contributions in regression

In RVAideMemoire: Testing and Plotting Procedures for Biostatistics

Individual contributions in regression

Description

Computes difference in regression parameters when each individual is dropped, expressed in proportion of the whole regression coefficients. The function deals with lm (including glm) and least.rect models.

Usage

ind.contrib(model, print.diff = FALSE, graph = TRUE, warning=25)

Arguments

model	model (of class "lm" or "least.rect").
print.diff	logical. If TRUE results are printed.
graph	logical. If TRUE results are returned in a graphical way.
warning	level of graphical warning.

Value

coefficients	coefficients of each computed regression.
coefficients.diff	difference in coefficients between each computed regression and the whole regression.
coefficients.prop	difference in coefficients expressed in proportion of the whole regression coefficients.

Author(s)

Maxime HERVE <[e-mail]>

See Also

lm.influence, least.rect

Examples

x <- 1:30
y <- 1:30+rnorm(30,0,4)
model1 <- lm(y~x)
model2 <- least.rect(y~x)
ind.contrib(model1)
ind.contrib(model2)

RVAideMemoire documentation built on Nov. 6, 2023, 5:07 p.m.