summary.seqtable {SSRA}

Sequential Relationship Table Summary

Description

summary function for the seqtab object

Usage

## S3 method for class 'seqtable'
summary(object, exclude = TRUE, ...)

Arguments

object

requires the result object of seqtable function

exclude

exclude lower-order paths (i.e., paths included in higher order paths)?

...

additional arguments affecting the summary produced

Details

Summary function for the seqtab object.

In this function, the number of the sequences is counted. 'Sequence' means a range of items with sequential relations. Sequences are classified in their length and are counted.

Value

rel	relationship: sq = sequential / eq = equal
var	variables involved in the sequential/equal paths

Author(s)

Takuya Yanagida [e-mail], Keiko Sakai [e-mail]

References

Takeya, M. (1991). A new test theory: Structural analyses for educational information. Tokyo: Waseda University Press.

See Also

SSRA, TSSA

Examples

# Example data based on Takeya (1991)

# Sakai Sequential Relation Analysis
# ordering assesed according to the correlation coefficient and mean difference
exdat.ssra <- SSRA(exdat, output = FALSE)
exdat.seqtab<- seqtable(exdat.ssra, output = FALSE)
summary(exdat.seqtab)