Package index

ASTR objects

Functions for creating and handling ASTR objects.

as_ASTR() read_ASTR() validate() format(<ASTR>) print(<ASTR>) get_contextual_columns() get_analytical_columns() get_isotope_columns() get_element_columns() get_ratio_columns() get_concentration_columns() get_unit_columns() remove_units() unify_concentration_unit()

ASTR Schema implementation

Data subsetting

Pre-compiled lists for easier subsetting of data

isotopes_data

Isotopes

elements_data

Chemical elements

oxides_data

Oxides

special_oxide_states

Special oxide states

Unit conversions

Functions and data tables for conversions between untis not covered in {units}

wt_to_at() at_to_wt()

Conversion between wt% and at%

element_to_oxide() oxide_to_element()

Oxide conversion functions

conversion_oxides

Conversion factors from oxides to elements

Calculations, Classifications, Statistics

Functions for data transformation

copper_alloy_bb()

Copper alloy classification according to Bayley & Butcher (2004)

copper_alloy_pollard()

Copper alloy classification according to Pollard et al. (2015).

copper_group_bray()

Copper classification according to Bray et al. (2015)

pb_iso_age_model() stacey_kramers_1975() cumming_richards_1975() albarede_juteau_1984()

Calculate lead isotope age models

pointcloud_distribution()

Comparing isotope samples to reference data in 3D space

Visualisation

Functions for plotting data

geom_kde2d()

Draw 2D kernel density estimate polygons by quantiles

geom_sk_lines() geom_sk_labels()

Lead Evolution Geom for Stacey & Kramers (1975)

Data

Datasets included in the package

ArgentinaDatabase

Lead isotope data from Argentina