vcd (version 0.9-9)

struc_sieve: Core-generating Function for Sieve Plots

Description

Core-generating function for strucplot returning a function producing sieve plots.

Usage

struc_sieve(sievetype = c("observed","expected"))

Arguments

sievetype

logical indicating whether rectangles should be filled according to observed or expected frequencies.

Value

• A function with arguments:
• residuals
  table of residuals.
• observed
  table of observed values.
• expected
  not used by struc_sieve.
• spacing
  object of class "unit" specifying the space between the tiles.
• gp
  list of gpar objects used for the drawing the tiles.
• split_vertical
  vector of logicals indicating, for each dimension of the table, the split direction.

Details

This function is usually called by strucplot (typically when called by sieve) and returns a function used by strucplot to produce sieve plots.

References

H. Riedwyl & M. Sch�pbach (1994), Parquet diagram to plot contingency tables. In F. Faulbaum (ed.), Softstat '93: Advances in Statistical Software, 293--299. Gustav Fischer, New York.

M. Friendly (2000), Visualizing Categorical Data, SAS Institute, Cary, NC.

See Also

sieve, strucplot, structable

Examples

## Titanic data
data("Titanic")
strucplot(Titanic, core = struc_sieve)

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