Access and Analyze Data from the Item Response Warehouse

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Documentation for package ‘irw’ version 1.3.1

• DESCRIPTION file
• Package NEWS
• Package README

Help Pages

diff_long	Simulated Item Difficulty Pool from IRW Datasets
irw_cache_dir	Folder where fetched tables are cached
irw_cache_info	List the cached tables
irw_check_resp	Check response patterns in IRW data
irw_clear_cache	Delete cached tables
irw_collection	Get the Tables in an IRW Collection
irw_collections	List IRW Collections
irw_collection_members	IRW Collection Membership
irw_covariates	Extract Person-Level Covariates from IRW Long-Format Data
irw_covariate_labels	Source Value Labels for an IRW Table's Coded Covariates
irw_decode	Restore Original Identifier Values
irw_download	Download a Dataset
irw_fetch	Fetch Table(s) from the Item Response Warehouse
irw_filter	Filter Available Datasets in IRW
irw_filter_comp	Filter Available Competition Datasets in IRW
irw_get_version	Report the IRW dataset versions in use
irw_has_credentials	Check whether irw can read from the warehouse without a login prompt
irw_imv	InterModel Vigorish (IMV)
irw_info	Retrieve and Print IRW Database or Table Information
irw_itemtext	Retrieve item text metadata for an IRW table
irw_license_options	View Unique License Options with Frequencies
irw_list_itemtext_tables	List IRW tables with available item text metadata
irw_list_tables	List Available Tables
irw_long2resp	Convert IRW Long-Format Data to Wide-Format Response Matrix
irw_merge	Merge Tables Sharing the Same DOI or BibTex
irw_metadata	Retrieve IRW Metadata Table
irw_predict	Predicted Response Probabilities from a Fitted mirt Model
irw_recode	Recode IRW Identifier Columns to Simple Sequential Codes
irw_recode_key	Retrieve the Recode Key from an Object Returned by irw_recode()
irw_reset_version	Remove IRW version pins
irw_resp2long	Convert Wide-Format Response Matrix to IRW Long Format
irw_save_bibtex	Save BibTeX Entries for IRW Tables
irw_set_version	Pin an IRW Redivis dataset to a released version
irw_simdata	Simulate IRW-compliant dichotomous item response data
irw_simdata_comp	Simulate IRW-compliant pairwise-comparison data
irw_simu_diff	Simulate Item Difficulties from IRW or Custom Pools
irw_table_sets	Summarize the value sets of an IRW table without downloading it
irw_tags	Retrieve IRW Tags Table
irw_tag_options	View Available Tag Values with Frequencies
irw_use_version	Read the whole corpus at one IRW version
irw_version	Which IRW version was live, and what every dataset was pinned to
swmd_mokken	Example Data from IRW Database