Error(s) in re-building vignettes:
--- re-building ‘vignette1.Rmd’ using rmarkdown
BTsubset_meta             package:BioTIMEr             R Documentation

_B_i_o_T_I_M_E _s_u_b_s_e_t _m_e_t_a_d_a_t_a

_D_e_s_c_r_i_p_t_i_o_n:

     A subset of the metadata from BioTIME

_U_s_a_g_e:

     BTsubset_meta
     
_F_o_r_m_a_t:

     ## `BTsubset_meta` A data frame with 12 rows and 25 columns:

     STUDY_ID BioTIME study unique identifier

     REALM Realm of study location, i.e. Marine

     CLIMATE Climate of study location, i.e. Temperate

     HABITAT Habitat of study location, i.e. Rivers

     PROTECTED_AREA binary variable indicating if the study is within a
          protected area

     BIOME_MAP Biome of study location (taken from the WWF biomes, i.e.
          Temperate broadleaf and mixed forests

     TAXA High level taxonomic identity of study species, i.e. Fish

     ORGANISMS More detailed information on taxonomy, i.e. woody plants

     TITLE Title of study as identified in original source

     AB_BIO A, B or AB to designate abundance only, biomass only or
          both

     DATA_POINTS Number of unique data points in study, e.g. 10 data
          points spanning 15 years = 10

     START_YEAR first year of study

     END_YEAR last year of study

     CENT_LAT Central latitude taken from the convex hull around all
          study coordinates

     CENT_LONG Central longitude taken from the convex hull around all
          study coordinates

     NUMBER_OF_SPECIES Number of distinct species in study

     NUMBER_OF_SAMPLES Number of distinct samples in study

     NUMBER_LAT_LONG Number of distinct geographic coordinates in study

     TOTAL Total number of records in study

     GRAIN_SQ_KM Grain size in km2, i.e. size of forest plots

     AREA_SQ_KM total area of study in km2

     DATE_STUDY_ADDED Date that the study was added to the database

     ABUNDANCE_TYPE Type of abundance, i.e. count

     BIOMASS_TYPE Type of biomass, i.e. weight

     SAMPLE_DESC concatenation of descriptors comprising the unique
          sampling event

_S_o_u_r_c_e:

     <https://biotime.st-andrews.ac.uk/download.php>


BTsubset_data             package:BioTIMEr             R Documentation

_B_i_o_T_I_M_E _s_u_b_s_e_t

_D_e_s_c_r_i_p_t_i_o_n:

     A subset of data from BioTIME temporal surveys.

_U_s_a_g_e:

     BTsubset_data
     
_F_o_r_m_a_t:

     ## `BTsubset_data` A data frame with 81,084 rows and 17 columns:

     ID_ALL_RAW_DATA Unique BioTIME identifier for record

     ABUNDANCE Double representing the abundance for the record (see
          metadata for details of ABUNDANCE_TYPE

     BIOMASS Double representing the biomass for the record (see
          metadata for details of BIOMASS_TYPE

     ID_SPECIES Unique identifier linking to the species table

     SAMPLE_DESC Concatenation of variables comprising unique sampling
          event

     PLOT Name or identifier of plot field, only used for fixed plots
          such as forest quadrats

     LATITUDE Latitude of record

     LONGITUDE Longitude of record

     DEPTH Depth or elevation of record if available

     DAY Numerical day of record

     MONTH Numerical value of month for record, i.e. January=1

     YEAR Year of record

     STUDY_ID BioTIME study unique identifier

     newID Validated species identifier key

     valid_name Highest taxonomic resolution of individual, preferred
          is genus and species

     resolution Level of resolution, i.e. 'species' represented by
          genus and species

     taxon Higher level taxonomic grouping, i.e. Fish

_S_o_u_r_c_e:

     <https://biotime.st-andrews.ac.uk/download.php>


Vignettes with name or keyword or title matching 'BioTIMEr' using fuzzy
matching:


BioTIMEr::vignette1     Introduction to BioTIMEr


Type 'vignette(PKG::FOO)' to inspect entries 'PKG::FOO'.



Help files with alias or concept or title matching 'BioTIMEr' using
fuzzy matching:


BioTIMEr::BTsubset_data
                        BioTIME subset
BioTIMEr::BTsubset_meta
                        BioTIME subset metadata
BioTIMEr::BioTIMEr-package
                        BioTIMEr: Tools to Use and Explore the
                        'BioTIME' Database
  Aliases: BioTIMEr, BioTIMEr-package
BioTIMEr::getLinearRegressions
                        Get Linear Regressions BioTIME
BioTIMEr::gridding      gridding BioTIME data
BioTIMEr::plotSlopes    Plot slopes BioTIME
  Aliases: themeBioTIME
BioTIMEr::rarefysamples
                        Rarefy BioTIME data Applies sample-based
                        rarefaction to standardise the number of
                        samples per year within a cell-level time
                        series.
BioTIMEr::resampling    Rarefy BioTIME data to an equal number of
                        samples per year
BioTIMEr::scale_color_biotime
                        Scale construction for ggplot use
  Aliases: scale_color_biotime, scale_colour_biotime,
    scale_fill_biotime


Type '?PKG::FOO' to inspect entries 'PKG::FOO', or 'TYPE?PKG::FOO' for
entries like 'PKG::FOO-TYPE'.





Quitting from lines 471-490 [trends8] (vignette1.Rmd)
Error: processing vignette 'vignette1.Rmd' failed with diagnostics:
Faceting variables must have at least one value.
--- failed re-building ‘vignette1.Rmd’

SUMMARY: processing the following file failed:
  ‘vignette1.Rmd’

Error: Vignette re-building failed.
Execution halted