NEWS.md

In tmatta/lsasim: Functions to Facilitate the Simulation of Large Scale Assessment Data

lsasim 2.1.5

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

Bug fixes

• Fixed top-level package documentation (?lsasim)

lsasim 2.1.3

Bug fixes

• Fixes generation of thresholds on item_gen() (issue #48)
• Refactored usage of class() on if-statements

lsasim 2.1.2

Bug fixes

• Refactoring to fix building on Fedora/Clang and M1-powered Macs

lsasim 2.1.1

Bug fixes

• Fixes test unit dependency on GNU libiconv

lsasim 2.1.0

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

Bug fixes

• Solves Issue #11, which was causing item_gen() to produce out-of-bounds item difficulties in some situations.

lsasim 2.0.1

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

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

API changes

• Added cov_bounds to cor_gen.
• Removed d1 from the returned data frame of item_gen when thresholds = 1.

lsasim 1.0.1.9000

API changes

• Added item_no to response_gen.

Bug fixes

• response_gen can now handle item subsets.

lsasim 1.0.0

• Launched

tmatta/lsasim documentation built on May 6, 2024, 5:34 p.m.