struc_mosaic {vcd} | R Documentation |
Core-generating Function for Mosaic Plots
Description
Core-generating function for strucplot
returning a function
producing mosaic plots.
Usage
struc_mosaic(zero_size = 0.5, zero_split = FALSE, zero_shade = TRUE,
zero_gp = gpar(col = 0), panel = NULL)
Arguments
zero_size |
size of the bullets used for zero-entries in the contingency table (if 0, no bullets are drawn). |
zero_split |
logical controlling whether zero cells should be
further split. If |
zero_shade |
logical controlling whether zero bullets should be shaded. |
zero_gp |
object of class |
panel |
Optional function with arguments: |
Details
This function is usually called by strucplot
(typically
when called by mosaic
) and returns a function used by
strucplot
to produce mosaic plots.
Value
A function with arguments:
residuals |
table of residuals. |
observed |
table of observed values. |
expected |
not used by |
spacing |
object of class |
gp |
list of |
split_vertical |
vector of logicals indicating, for each dimension of the table, the split direction. |
Author(s)
David Meyer David.Meyer@R-project.org
References
Cohen, A. (1980), On the graphical display of the significant components in a two-way contingency table. Communications in Statistics—Theory and Methods, A9, 1025–1041.
Friendly, M. (1992), Graphical methods for categorical data. SAS User Group International Conference Proceedings, 17, 190–200. http://datavis.ca/papers/sugi/sugi17.pdf
Meyer, D., Zeileis, A., and Hornik, K. (2006),
The strucplot framework: Visualizing multi-way contingency tables with
vcd.
Journal of Statistical Software, 17(3), 1-48.
doi:10.18637/jss.v017.i03 and available as
vignette("strucplot")
.
See Also
Examples
## Titanic data
data("Titanic")
## mosaic plot with large zeros
strucplot(Titanic, core = struc_mosaic(zero_size = 1))