Changelog • dfine

Reverts gsed4 –> gsed3 in calculate_dmodel() and plot_tau_contrast(), so now all code uses the gsed3 lexicon
Moves calculate_DIF_classification() and calculate_DIF_table() from gsedscripts to the dfine package
Adds difR dependency
Reformats source files

Adds dazand show_smooth arguments to plot_d_a_cohort()
Adapt some routines to work with gsed4 lexicon for better integration with published test materials

Adds plot_d_a_cohort() and calculate_cohort()

Improves NULL handling of plot_pass() arguments

Replaces plot_p_a_item(), plot_p_a_one_item() and plot_p_d_item() by plot_pass()

Adds plot_tau_constrast() to generate an interactive plotly figure to compare two sets of tau estimates
Adds a transform = "auto" option to the calculate_dmodel() arguments

Repairs bug in plot_p_a_one_item() to allow for both x_var = "d" and x_var = "a"
Adds built-in color palettes and get_palette() function to retrieve them

Adds plot_p_d_item() for plotting pass curves against ability

Moves scripts/plot_p_a.R to the gsedscripts package

Adds scripts/plot_p_a.R to plot the passing rates by age for the -still provisional- GSED phase 1 & 2 data
Adds functions plot_p_a_item() and plot_p_a_one_item() to plot passing rates per items by a continuous variable

Adds new function calculate_dmodel() which works with both long and wide data
Adds item_var, reponse_var, ability_var to list returned from rasch()
Makes 0/1 range checks faster in rasch()

Add the rasch() function to fit Rasch model with 1) item equating, 2) beta fixing and 3) pairs calculation

First commit