These functions generate legend functions for residual-based shadings.
legend_resbased(fontsize = 12, fontfamily = "",
x = unit(1, "lines"), y = unit(0.1,"npc"),
height = unit(0.8, "npc"),
width = unit(0.7, "lines"),
digits = 2, pdigits = max(1, getOption("digits") - 2),
check_overlap = TRUE, text = NULL,
steps = 200, ticks = 10, pvalue = TRUE, range = NULL)
legend_fixed(fontsize = 12, fontfamily = "", x = unit(1, "lines"), y = NULL,
height = NULL, width = unit(1.5, "lines"), steps = 200,
digits = 1, space = 0.05, text = NULL, range = NULL)
A function with arguments:
residuals from the fitted independence model to be visualized.
shading function computing colors from residuals (see details).
character vector indicating the title to be used when
no text
argument is specified. Allows strucplot to generate
sensible defaults depending on the residuals type.
fontsize of title and p-value text.
fontfamily of all text.
objects of class "unit"
indicating the coordinates
of the title. For legend_fixed
, the default for y
is
computed as to leave enough space for the specified text
.
object of class "unit"
indicating the
height/width of the legend. For legend_fixed
, the default for
y
is computed as to align upper margins of legend and actual plot.
number of digits for the scale labels.
number of digits for the p-value.
logical indicating whether overlap of scale labels should be inhibited or not.
For legend_fixed
only: proportion of space
between the tiles.
character string indicating the title of the legend.
granularity of the color gradient.
number of scale ticks.
logical indicating whether the \(p\)-value should be visualized under the scale or not.
Numeric vector of length 2 for setting the legend
range. Computed from the residuals if omitted. NA
values are
replaced by the corresponding minimum / maximum of the residuals.
David Meyer David.Meyer@R-project.org
These functions generate legend functions for residual-based shadings,
visualizing deviations from expected values of an hypothesized
independence model. Therefore, the legend uses a supplied shading
function to visualize the color gradient for the residuals range.
legend_fixed
is inspired by the legend used in
mosaicplot
. For
more details on the shading functions and their return values, see
shadings
.
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.
tools:::Rd_expr_doi("10.18637/jss.v017.i03") and available as
vignette("strucplot")
.
Meyer, D., Zeileis, A., Hornik, K. (2003), Visualizing independence using extended association plots. Proceedings of the 3rd International Workshop on Distributed Statistical Computing, K. Hornik, F. Leisch, A. Zeileis (eds.), ISSN 1609-395X. https://www.R-project.org/conferences/DSC-2003/Proceedings/
structable
,
shadings
data("Titanic")
mosaic(Titanic, shade = TRUE, legend = legend_resbased)
mosaic(Titanic, shade = TRUE, legend = legend_fixed, gp = shading_Friendly)
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