Description Usage Arguments Value Note Author(s) References See Also Examples
hasse
plots the Hasse diagram of a surmise relation (more
precisely, of its corresponding quotient set).
1 | hasse(imp, items)
|
imp |
a required object of class |
items |
a required numeric giving the number of items of the
domain taken as basis for |
If the arguments imp
and items
are of required types,
hasse
produces a plot, and returns a list of the equally
informative items.
The function hasse
is not capable of plotting equally
informative items. This is why equally informative items are
returned in a list.
A set of implications, an object of the class
set
, consists of 2-tuples (i, j) of
the class tuple
, where a 2-tuple
(i, j) is interpreted as 'mastering item j implies
mastering item i.'
Anatol Sargin, Ali Uenlue
Doignon, J.-P. and Falmagne, J.-C. (1999) Knowledge Spaces. Berlin, Heidelberg, and New York: Springer-Verlag.
Uenlue, A. and Sargin, A. (2010) DAKS: An R package for data analysis methods in knowledge space theory. Journal of Statistical Software, 37(2), 1–31. URL http://www.jstatsoft.org/v37/i02/.
iita
, the interface that provides the three
inductive item tree analysis methods under one umbrella. See also
DAKS-package
for general information about this
package.
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Loading required package: relations
Loading required package: sets
list()
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