M1                      A shapefile of the world's country borders.
accBasinNames           Return the list of oceans and seas.
accClimateVariables     Describes all the variables available in the
                        database.
accCountryNames         Return the list of the continents and
                        associated countries.
accRealmNames           Return the list of the realms and associated
                        biomes and ecoregions.
calib_clim_space        Calibrate the distribution of the modern
                        climate space.
check_coordinates       Check if the coordinates are correct.
cite_climate_data       Returns the references associated with the
                        climate data used to fit the 'pdfs'.
cite_crest              Returns the list of references associated to
                        the reconstruction.
cite_distrib_data       Returns the references associated with the GBIF
                        data used to fit the 'pdfs'.
cite_method             Returns the references associated with the
                        development of CREST.
climate_from_xy         Extract The climate values associated to a set
                        of coordinates.
close_db_connection     Disconnect the database connection.
colour_theme            Returns a vector of colours
connect_online          Connect to the gbif4crest calibration database
convert2percentages     Convert abundance data into percentage data.
convert2presenceAbsence
                        Convert data into presence/absence data.
copy_crest              Copy crest data to the clipboard.
createPSE               Returns the citations associated to the GBIF
                        data used to fit the pdfs.
crest                   A wrapper for all the crest functions.
crest.calibrate         Fit the species and proxy 'pdfs'
crest.get_modern_data   Extract distributions from the database
crest.reconstruct       Reconstruct climate from fossil data
crest.set_modern_data   Format a 'crestObj' with private data.
crestObj                Create a 'crestObj' object.
crest_ex                Example dataset to run the CREST method for the
                        first time.
crest_ex_pse            Example dataset to Extract data from the
                        example database.
crest_ex_selection      Example dataset to associate taxa with climate
                        variables.
crop                    Crop the dataset obtained from
                        'crest.get_modern_data'
dbRequest               Connect to the gbif4crest database
eqearth_get_ext         Calculates the extent of the plot in the equal
                        earth projection.
excludeTaxa             Excludes the list of taxa from the
                        reconstructions.
explore_calibration_dataset
                        Extract distributions from the database
export                  Export the results
export_pdfs             Export the pdfs fitted for the different taxa.
find.original.name      Returns the name of the function argument in
                        the global environment
fit_pdfsp               Fit the species 'pdfs'.
fit_xrange              Define the climate gradient to fit the 'pdfs'.
getClimateSpace         Extract the distribution of the studied climate
                        gradient(s) across the study area.
getDistribTaxa          Extract taxonID(s) corresponding to the
                        taxonomic description
getSpeciesdiversity     Calculates how many species compose the
                        response of each taxon.
getTaxonID              Extract taxonID(s) corresponding to the
                        taxonomic description
getTaxonomy             Extract taxonID(s) corresponding to the
                        taxonomic description
get_taxa_type           Returns the taxa type corresponding to the
                        index.
includeTaxa             Includes the list of taxa into the
                        reconstructions.
isColourStr             Test if 'R' can interpret a string as a colour
loo                     Performs the leave-one-out analysis
makeTransparent         Wrapper function of to add transparency to a
                        colour.
meanPositiveValues      Calculate the mean of all strictly positive
                        values.
normalise               Normalises the percentages
plot.crestObj           Plot the reconstructions.
plot_climateSpace       Plot the studied climate space.
plot_combinedPDFs       Plot representing how the 'pdfs' combine to
                        produce the reconstruction.
plot_diagram            Plot stratigraphic data as polygons or
                        barplots.
plot_loo                Plot the results of the leave-one-out analysis.
plot_map_eqearth        Plots raster data in equal earth projection.
plot_taxaCharacteristics
                        Plot the distribution and responses of the
                        studied taxa
plot_violinPDFs         Plot the pdfs as violins
reconstr                A 'crestObj' ran with the example dataset.
