Description Usage Arguments Details Value Author(s) See Also Examples
Plot graphic(s) for multcompTs or multcompLetters objects
1 2 3 4 5 6 7 8 9 10 11 12 13 14 
x 
an object of class 'multcompTs' or 'multcompLetters'. 
horizontal 
A logical scalar indicating whether the list of items compared reads left to right (horizontal = TRUE) or top to bottom (horizontal = FALSE). If this multcomp graphic accompanies boxplots for different levels or groups compared, the 'boxplot' argument 'horizontal' is the negation of the multcomp plot 'horizontal' argument. 
col 
The color for each group of items or factor levels. The colors
will cross the different items or factor levels and will therefore have the
orientation specified via 'horizontal'. If the number of columns exceeds
length(col), col is recycled. For alternative choices for col, see "Color
Specification" in the 
type 
An alternative display for either multcompTs or multcompLetters is 'boxes' (or rectangles). If type="boxes" with "multcompTs", the "base(s)" of each "T" will be indicated by a triangle. 
add 
TRUE to add to an existing plot; FALSE to start a new plot. The names of the factor levels or items compared will be plotted only if add=FALSE. 
at 
A numeric vector or matrix or a list with components "at" and "width". If a list, both components must be either a numeric vector or matrix. The numeric vector "at" (whether the function argument or "at" component of the "at" list) must be either a numeric vector or matrix giving the locations where the "Ts" or "Letters" graphics should be drawn. length(at) is 1, 2 or 3 times the number of the number of factor levels or items compared. If length(at) is twice the number of levels or items compared, it gives the range of the display for that level; the base of a "T" will be at the midpoint. If length(at) is three times the number of items compared, the intermediate number will be the center of the base of the "T". 
width 
A numeric vector or matrix with as many rows as "Ts" or "groups" and with up to three columns. With one column, it will be the "center" of the plot range for that group. With two columns, they will delimit the range. With three, they will provide "bottom", "center", and "top" of the range for that set of grouping indicators. If "at" is a list, the argument "width" is ignored and is taken from the list "at". 
fig 
A numerical vector of the form 'c(x1, x2, y1, y2)' giving the
coordinates of the figure region in the display region of the plot device,
as described on the 
label.levels 
NA for no labels or distance away from the plot for the labels as a proportion of the plot range. 
label.groups 
NA for no labels or distance away from the plot for the labels as a proportion of the plot range. 
... 
graphical parameters can be given as described on the

The requested graphic is either plotted by itself or added to an existing plot as specified by the arguments. The placement can be controlled by 'fig' and 'at'.
The fontsize and fontface of a plot of a multcompLetters object with 'type =
"Letters"' can be adjusted as describe on the gpar
help
page.
A list with two components:
at 
A matrix with three columns giving the middle and extremes of the display for each of the factor levels or items compared. 
width 
A matrix with as many rows as "Ts" or comparitor levels and with two columns giving the plot range for that comparitor level. 
Spencer Graves
multcompTs
multcompLetters
multcompBoxplot
gpar
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55  ##
## plot(multcompTs(...))
##
dif4 < c(.1, .02, .03, 1)
names(dif4) < c("AB", "AC", "BC", "AD")
(mcT4 < multcompTs(dif4))
# Standard plot, base of "Ts" point left
mcT4.1 < plot(mcT4, label.groups=0.05)
# Redo using "at" = list
plot(mcT4, label.groups=0.05, at=mcT4.1)
# Same plot with group labels closer to the figure
plot(mcT4, label.groups=0.02)
# Base of "Ts" point right
plot(mcT4, label.groups=TRUE, orientation="r")
# Base of "Ts" point down
plot(mcT4, horizontal=TRUE, label.groups=0.05)
# Base of "Ts" point up
plot(mcT4, horizontal=TRUE, label.groups=0.05,
orientation="r")
# Same 4 plots but with boxes & triangles, not Ts
plot(mcT4, label.groups=0.05, type="b")
plot(mcT4, label.groups=0.05, orientation="r",
type="b")
plot(mcT4, horizontal=TRUE, label.groups=0.05,
type="b")
plot(mcT4, horizontal=TRUE, label.groups=0.05,
orientation="r", type="b")
##
## plot(multcompLetters(...))
##
# ... using dif4 from above
(mcL4 < multcompLetters(dif4, Letters=LETTERS))
# Standard plot
## Not run:
# Requires (grid)
mcL4.1 < plot(mcL4, label.groups=0.05)
# Redo using "at" = list
plot(mcL4, label.groups=0.05, at=mcL4.1)
# With bold face and larger font
plot(mcL4, label.groups=0.05,
fontsize=28, fontface="bold")
# Horizontal rather than vertical
plot(mcL4, horizontal=TRUE, label.groups=0.05)
## End(Not run)
# Same as boxes rather than letters
plot(mcL4, label.groups=0.05, type="b")
plot(mcL4, horizontal=TRUE, label.groups=0.05,
type="b")

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