R: Core-generating Function for Sieve Plots

struc_sieve {vcd} | R Documentation

## 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"), gp_tile = gpar(),
    scale = 1)

### Arguments

`sievetype` | logical indicating whether rectangles should be filled according to `observed` or `expected` frequencies.
`gp_tile` | object of class `"gpar"`, controlling the appearance of all static elements of the cells (e.g., border and fill color).
`scale` | Scaling factor for the sieve.

### Details

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

### 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.

### Author(s)

David Meyer David.Meyer@R-project.org

### References

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

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

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. URL http://www.jstatsoft.org/v17/i03/ and available as `vignette("strucplot")`.

### See Also

`sieve`, `strucplot`, `structable`

### Examples

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

[Package vcd version 1.4-4 Index]