ShortForm

Automatic Short Form Creation

Performs automatic creation of short forms of scales with an ant colony optimization algorithm and a Tabu search. As implemented in the package, the ant colony algorithm randomly selects items to build a model of a specified length, then updates the probability of item selection according to the fit of the best model within each set of searches. The algorithm continues until the same items are selected by multiple ants a given number of times in a row. On the other hand, the Tabu search changes one parameter at a time to be either free, constrained, or fixed while keeping track of the changes made and putting changes that result in worse fit in a "tabu" list so that the algorithm does not revisit them for some number of searches. See Leite, Huang, & Marcoulides (2008) <doi:10.1080/00273170802285743> for an applied example of the ant colony algorithm, and Marcoulides & Falk (2018) <doi:10.1080/10705511.2017.1409074> for an applied example of the Tabu search.

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Description file content

Package
ShortForm
Type
Package
Title
Automatic Short Form Creation
Version
0.4.3
Date
2019-8-7
Description
Performs automatic creation of short forms of scales with an ant colony optimization algorithm and a Tabu search. As implemented in the package, the ant colony algorithm randomly selects items to build a model of a specified length, then updates the probability of item selection according to the fit of the best model within each set of searches. The algorithm continues until the same items are selected by multiple ants a given number of times in a row. On the other hand, the Tabu search changes one parameter at a time to be either free, constrained, or fixed while keeping track of the changes made and putting changes that result in worse fit in a "tabu" list so that the algorithm does not revisit them for some number of searches. See Leite, Huang, & Marcoulides (2008) for an applied example of the ant colony algorithm, and Marcoulides & Falk (2018) for an applied example of the Tabu search.
License
LGPL (>= 2.0, < 3) | Mozilla Public License
LazyData
TRUE
RoxygenNote
6.1.1
Suggests
knitr, MplusAutomation (>= 0.7), rmarkdown
Imports
lavaan (>= 0.5-22), ggplot2, tidyr, stringr
Depends
R (>= 3.0.0)
URL
BugReports
https://github.com/AnthonyRaborn/ShortForm/issues
Encoding
UTF-8
NeedsCompilation
no
Packaged
2019-08-07 17:27:08 UTC; araborn
Author
Anthony Raborn [aut, cre], Walter Leite [aut]
Maintainer
Anthony Raborn
Repository
CRAN
Date/Publication
2019-08-07 17:40:02 UTC

install.packages('ShortForm')

0.4.3

14 days ago

https://github.com/AnthonyRaborn/ShortForm

Anthony Raborn

LGPL (>= 2.0, < 3) | Mozilla Public License

Depends on

R (>= 3.0.0)

Imports

lavaan (>= 0.5-22), ggplot2, tidyr, stringr

Suggests

knitr, MplusAutomation (>= 0.7), rmarkdown

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