panel.bars: strucplot Panel Functions

In stripless: Structured Trellis Displays Without Strips for Lattice Graphics

Description

Panel functions for strucplot.

Usage

panel.bars(..., summaryFUN = function(x) mean(x, na.rm = TRUE),
  col = "darkblue", grid = TRUE, col.grid = "lightgray")

Arguments

...	Arguments to barchart. See panel.barchart.
summaryFUN	The function that summarizes replicated response values. Default = fuction(x) mean(x, na.rm = TRUE).
col	Color of the bars. Default = "darkblue".
grid	Should an appropriate background grid be plotted? Default = TRUE.
col.grid	The background grid color. Default = "lightgray".

Details

panel.bars A wrapper for panel.barchart that plots bars that summarize the responses at each setting of the conditioning variables. By default, bars are vertical, but setting the optional parameter, horizontal to TRUE plots horizontal bars.

Examples

# A half fraction of a 2^5 full factorial with pseudo-replicate responses
# at each design point,

# Build the design matrix
x <- c(-1,1)
ff <- expand.grid(x,x,x,x)
ff[[5]] <- do.call(mapply,c(FUN=prod,ff))
ff <- ff[rep(1:16,e=2),] ## replicates each row twice
names(ff) <- LETTERS[1:5]

# Add a column for the response
ff$y <-c(155.5, 154.8, 158.4, 156.2, 154.8, 152.4, 159.7, 155.5, 161.8, 
159.7, 159, 158.4, 159.7, 157.7, 161.8, 158, 155.9, 151.7, 159, 
158, 154.1, 156.9, 158.4, 158.4, 159, 154.8, 158.4, 156.2, 161.1, 
156.9, 162.6, 159)

# Plot using panel.bars
strucplot(~ y|., data = ff, panel = panel.bars)

# It is often useful to plot the bars the other way, too
strucplot(~ y|., data = ff, panel = panel.bars, horizontal = TRUE)

stripless documentation built on May 2, 2019, 10:59 a.m.