seqtable {SSRA}

Sequential Relation Table

Description

This function builds a table for the tssa and ssra object used to create a treegram

Usage

seqtable(object, order = c("no", "decreasing", "increasing"),
  digits = 3, output = TRUE)

Arguments

object

requires the return object from the TSSA or SSRA function

order

sort by item mean of j?

digits

integer indicating the number of decimal places to be used

output

print result table?

Details

In this table, we can see how many 'sequential' or 'equal' relations each of items has with the other items.

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

TSSA, SSRA, treegram, summary.seqtable

Examples

# Example data based on Takeya (1991)

# Takeya Semantic Structure Analysis
# ordering assesed according to the correlation coefficient and mean difference
exdat.tssa <- TSSA(exdat, m = 5, output = FALSE)
seqtable(exdat.tssa)

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