Package: RDelta 0.1.0

Mauro Cavalcanti

RDelta: Parse and Query DELTA-Format Taxonomic Descriptions

Provides an R interface to the 'tDelta' C++ library for parsing DELTA (DEscription Language for TAxonomy) format files <https://freedelta.sourceforge.net>. Supports loading character lists, item descriptions, and specifications, with efficient searching and matching of items based on character values. It also supports the generation of identification keys, diagnoses, natural-language descriptions, and clustering and ordination analyses by means of the DELTA programs 'CONFOR', 'KEY', and 'DIST'.

Authors:Mauro Cavalcanti [aut, cre], Edinaldo Nelson dos Santos Silva [ctb]

RDelta_0.1.0.tar.gz
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RDelta_0.1.0.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
RDelta/json (API)

# Install 'RDelta' in R:

install.packages('RDelta', repos = c('https://cran.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/maurobio/rdelta/issues

Uses libs:

c++– GNU Standard C++ Library v3

On CRAN:

cpp

2.00 score 92 exports 1 dependencies

Last updated from:e7fdaf3b20. Checks:10 OK. Indexed: yes.

Target	Result	Time
linux-devel-arm64	OK	111
linux-devel-x86_64	OK	359
source / vignettes	OK	218
linux-release-arm64	OK	106
linux-release-x86_64	OK	141
windows-devel-arm64	OK	274
windows-devel-x86_64	OK	175
windows-release-arm64	OK	207
windows-release-x86_64	OK	95
wasm-release	OK	105

Exports:attribute_count attribute_string char_count char_feature char_type char_type_name char_unit characters_df chars_filename check checkc checki cluster debug_all delta_char_types delta_version delta2sliks dependent_characters dependent_count dist find_matching first_matching get_all_depchar get_all_dependencies get_all_implicit_values get_attribute get_attributes_nb get_char_feature get_char_type get_char_unit get_chars_debug get_chars_nb get_depchar get_depchar_nb get_example_files get_filename get_implicit_value get_item get_item_name get_items_debug get_items_filename get_items_nb get_specs_debug get_specs_filename get_state get_states_nb get_version has_specifications implicit_value implicit_values is_chars_parsed is_dependent is_items_parsed is_parsed is_specs_parsed item_attributes item_count item_data item_name item_names items_df items_filename key load_delta matches natlan next_matching parse_attribute parse_characters parse_items parse_specs pcoa retrieve_all retrieve_all_chars retrieve_all_items retrieve_all_specs save_delta set_char_type set_char_type_by_name set_chars_filename set_filename set_items_file set_items_filename set_specs_file set_specs_filename specs_filename state_count state_name states strip_comments summary uncoded

Dependencies:Rcpp

Introduction to RDelta

Rendered fromRdelta-introduction.Rmdusingknitr::rmarkdown

Last update: 2026-10-28
Started: 2026-10-28

Citation

Readme and manuals

Help Manual

Help page	Topics
Get number of attributes for an item	attribute_count
Get attribute string	attribute_string
Get number of characters	char_count
Get character feature	char_feature
Get character type	char_type
Get character type name	char_type_name
Get character unit	char_unit
Get character information as a data frame	characters_df
Get characters filename	chars_filename
Check the characters and items	check
Check the characters	checkc
Check the items	checki
Hierarchical Cluster Analysis	cluster
Get all debug output	debug_all
Get character type constants	delta_char_types
Get package version	delta_version
Convert DELTA dataset to SLIKS format	delta2sliks
Get all dependent characters	dependent_characters
Get number of dependent characters	dependent_count
Generate Distance Matrix using Gower's Coefficient	dist
Find all matching items	find_matching
Find first matching item	first_matching
Get all dependent characters	get_all_depchar
Get all dependency relationships	get_all_dependencies
Get all implicit values	get_all_implicit_values
Get attribute string (C++ style)	get_attribute
Get number of attributes (C++ style)	get_attributes_nb
Get character feature (C++ style)	get_char_feature
Get character type (C++ style)	get_char_type
Get character unit (C++ style)	get_char_unit
Get character debug output	get_chars_debug
Get number of characters (C++ style)	get_chars_nb
Get dependent character by rank (C++ style)	get_depchar
Get number of dependent characters (C++ style)	get_depchar_nb
Get example file paths for testing	get_example_files
Get filename (C++ style)	get_filename
Get implicit value (C++ style)	get_implicit_value
Get complete item data as a list	get_item
Get item name (C++ style)	get_item_name
Get items debug output	get_items_debug
Get items filename (C++ style)	get_items_filename
Get number of items (C++ style)	get_items_nb
Get specifications debug output	get_specs_debug
Get specifications filename (C++ style)	get_specs_filename
Get state name (C++ style)	get_state
Get number of states (C++ style)	get_states_nb
Get version of the underlying C++ library	get_version
Check if specifications are available	has_specifications
Get implicit value	implicit_value
Get all implicit values	implicit_values
Check if characters are parsed	is_chars_parsed
Check if character is dependent	is_dependent
Check if items are parsed	is_items_parsed
Check if parsed (C++ style)	is_parsed
Check if specifications are parsed	is_specs_parsed
Get item attributes as data frame	item_attributes
Get number of items	item_count
Get item data as list	item_data
Get item name	item_name
Get all item names	item_names
Get item information as a data frame	items_df
Get items filename	items_filename
Generate Dichotomous Key using CONFOR/KEY	key
Load a DELTA dataset	load_delta
Check if item matches values	matches
Translate DELTA-format data into natural language descriptions via CONFOR	natlan
Find next matching item	next_matching
Parse a DELTA attribute string	parse_attribute
Parse characters file	parse_characters
Parse items file	parse_items
Parse specifications file	parse_specs
Principal Coordinates Analysis	pcoa
Retrieve ALL information for debugging	retrieve_all
Retrieve all character information for debugging	retrieve_all_chars
Retrieve all item information for debugging	retrieve_all_items
Retrieve all specifications information for debugging	retrieve_all_specs
Save a Delta dataset to disk	save_delta
Set character type	set_char_type
Set character type by name	set_char_type_by_name
Set characters filename	set_chars_filename
Set filename (C++ style)	set_filename
Set items filename	set_items_file
Set items filename (C++ style)	set_items_filename
Set specifications filename	set_specs_file
Set specifications filename (C++ style)	set_specs_filename
Get specifications filename	specs_filename
Get number of states for a character	state_count
Get state name	state_name
Get all states for a character	states
Remove comments from a DELTA string	strip_comments
Generate a statistical summary of taxonomic characters using CONFOR	summary
Generate a list of uncoded characters using CONFOR	uncoded

Package: RDelta 0.1.0

RDelta: Parse and Query DELTA-Format Taxonomic Descriptions

Citation

Readme and manuals

Help Manual

Usage by other packages (reverse dependencies)