NEWS
lsasim 2.1.5 (2024-05-06)
Bug fixes
- Fixed
block_design() for non-sequential items (issue #50)
- Fixed typos in documentation
- Reimplemented continuous integration routine (issue #47)
lsasim 2.1.4 (2023-08-22)
Bug fixes
- Fixed top-level package documentation (
?lsasim)
lsasim 2.1.3 (2023-03-28)
Bug fixes
- Fixes generation of thresholds on
item_gen() (issue #48)
- Refactored usage of
class() on if-statements
lsasim 2.1.2 (2021-11-09)
Bug fixes
- Refactoring to fix building on Fedora/Clang and M1-powered Macs
lsasim 2.1.1 (2021-06-24)
Bug fixes
- Fixes test unit dependency on GNU libiconv
lsasim 2.1.0 (2021-06-23)
API changes
- Adds
cluster_gen, a function to generate background questionnaires (with questionnaire_gen) in a cluster sampling structure.
- Package description now includes a literary reference for the theoretical framework behind the package (issue #38, pull request #42)
Bug fixes
- Fixes item parameter generation by
irt_gen when the guessing parameter is larger than zero (issue #40)
lsasim 2.0.2 (2020-09-10)
Bug fixes
- Solves Issue #11, which was causing
item_gen() to produce out-of-bounds item difficulties in some situations.
lsasim 2.0.1 (2019-12-05)
Bug fixes
- Makes lsasim compliant with changes to be introduced in the next major release of R. lsasim 2.0.1 is functionally identical to 2.0.0, as all changes relate to how
if (class(x) == "matrix" statements are written. Specifically, such statements were changed to if(class(x))[1] == "matrix" to accommodate for cases where x may be a matrix with complex classes such as "matrix" "array".
lsasim 2.0.0 (2019-09-12)
API changes
This release adds several features to the questionnaire_gen function, such as:
- Generation of questionnaires given a much wider range of arguments.
- Reduction of the number of mandatory arguments to 1 (number of observations).
- Generation of answers which are jointly-distributed as a multivariate normal distribution.
- Generation of theoretical and empirical (Monte Carlo) regression coefficients of
theta as a linear function of the background questionnaire items.
Please read the function's help file for more details on how to access these new features.
Note: any R code written for the questionnaire_gen function from previous versions of lsasim may not work properly on this version due to the rearrangement of the function's arguments and slight changes in its default behavior. Please review your code before executing old scripts.
lsasim 1.0.1.9000
API changes
- Added
item_no to response_gen.
Bug fixes
response_gen can now handle item subsets.
lsasim 1.0.1 (2017-05-10)
API changes
- Added
cov_bounds to cor_gen.
- Removed
d1 from the returned data frame of item_gen when thresholds = 1.
lsasim 1.0.0 (2017-02-23)