Uplot: Plot of Multipliers in Regression ANOVA Plot

In MPV: Data Sets from Montgomery, Peck and Vining

Plot of Multipliers in Regression ANOVA Plot

Description

This function graphically displays the coefficient multipliers used in the Regression Plot for the given predictor.

Usage

Uplot(X.qr, Xcolumn = 1, ...)

Arguments

X.qr	The design matrix or the QR decomposition of the design matrix.
Xcolumn	The column(s) of the design matrix under study; this can be either integer valued or a character string.
...	Additional arguments to barchart.

Value

A bar plot is displayed.

Author(s)

W. John Braun

Examples

# Jojoba oil data set
X <- p4.18[,-4]
Uplot(X, 1:4)
# NFL data set; see GFplot result first
X <- table.b1[,-1]
Uplot(X, c(2,3,9))
# In this example, x8 is the only predictor in
# the true model:
X <- pathoeg[,-10]
y <- pathoeg[,10]
pathoeg.F <- GFplot(X, y, plotIt=FALSE)
Uplot(X, "x8")
Uplot(X, 9) # same as above
Uplot(pathoeg.F$QR, 9) # same as above
X <- table.b1[,-1]
Uplot(X, c("x2", "x3", "x9"))

MPV documentation built on Sept. 11, 2024, 6:51 p.m.