Validation of Seasonal Weather Forecasts

Documentation for package ‘SeaVal’ version 1.2.0

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add_climatology	Add climatology to a data table
add_country	Same as add_country_names
add_country_names	Add country names to a data table with lon/lat coordinates
add_tercile_cat	Add a tercile-category column to a data table
add_tercile_probs	Add tercile probabilities to ensemble forecasts
are_all_elements_within_eps	Check if all elements of x are within tolerance eps of any element in y
by_cols_ens_fc_score	Auxiliary function
by_cols_terc_fc_score	Auxiliary function
by_cols_terc_fc_score_sp	Auxiliary function
checks_ens_fc_score	Auxiliary function for scores of ensemble forecasts.
checks_terc_fc_score	Auxiliary function for scores for tercile forecasts.
chirps_dir	CHIRPS directory
chirps_monthly	Monthly mean precipitation
chirps_ver_map_quantiles	Calculates and saves the quantiles of CHIRPS data required for verification maps.
climatology_ens_forecast	Returns a leave-one-year-out climatology-based ensemble forecast
climatology_threshold_exceedence	Get climatological prediction for exceedence probabilities.
combine	Combine two data tables
complete_regular_grid	Expand Regular Spatial Grid
convert_monthly_to_seasonal	Convert a data table from monthly to seasonal format
CPA	Coefficients of Predictive Ability
create_diagram_by_level	Auxiliary function to simplify grouping for diagrams
CRPS	Continuous Ranked Probability Score
CRPSS	Continuous Ranked Probability Skill Score
crps_aux	Auxiliary function for calculating crps.
crps_aux_esc	Auxiliary function for calculating crps with ensemble size correction by Ferro et al. 2008.
data_dir	Auxiliary function to access and change the directory used to load and save data.
delete_redundant_files	Auxiliary function cleaning out the directories, called at the end of the CHIRPS download.
dimvars	Get dimension variables
disc_score_dt	Generalized Discrimination score
DISS	Generalized discrimination score
download_chirps_monthly	Download monthly CHIRPS-data
download_chirps_monthly_high	Auxiliary function called by download_chirps_monthly
download_chirps_monthly_low	Auxiliary function called by download_chirps_monthly
download_chirps_prelim_aux	Auxiliary function for downloading the preliminary CHIRPS monthly data
dt_to_netcdf	Write a netcdf from a long data table
EA_country_names	Get names of countries in east Africa
ecmwf_monthly	Monthly mean precipitation forecast example dataset
EIR	Effective Interest Rate
fc_cols	Forecast column names
get_mask	Function to create a mask of dry regions from CHIRPS
get_quantiles	Calculate quantiles from a data table
get_terciles	get terciles from a data table
ggplot_dt	plotting function for spatial data
ggplot_dt_gha_map	Plotting function with different map for Greater Horn of Africa
ggplot_dt_shf	Plotting function with different map for Greater Horn of Africa
GHA_extent	GHA-bounding-box
gha_plot	Plotting function with different map for Greater Horn of Africa
grid_info	Retrieve spatial grid information from a data table
HS	Hit score
HSS	Hit Skill Score
IGS	Ignorance Score
IGSS	Ignorance Skill score
indicator_times_value_aux	Auxiliary function for multiplying two numbers such that 0 x infty is 0. Needed for the ignorance score: 0log(0) should be 0.
load_chirps	Function for loading CHIRPS (monthly) data.
lt_cols	Data table column names that are recognized as leadtime
MB	Multicategory Brier score
MBS	Multicategory Brier Skill score
modify_dt_map_plotting	Auxiliary function for checking dimensions for map-plotting
MSD_to_YM	Converts time given as 'months since date' (MSD) into years and months (YM)
MSE	Mean Square Error of ensemble forecasts.
MSES	Mean Square Error Skill score
netcdf_to_dt	function for converting netcdfs to long data tables.
obs_cols	Observation column names
obs_dimvars	Auxiliary function returning observation dimvars.
PCC	Pearson Correlation Coefficient
profit_graph	(Accumulative) profit graphs
REL	Reliability score
rel_diag	Reliability Diagrams for tercile forecasts
rel_diag_vec	Reliability diagram from vectors of probabilities and observations
RES	Resolution score
restrict_to_confer_region	restricts data to the Greater Horn of Africa
restrict_to_country	restricts data to a specified country
restrict_to_GHA	restricts data to the Greater Horn of Africa
ROCS	ROC-score/Area Under Curve(AUC)
ROC_curve	ROC curve for tercile forecasts
roc_curve_vec	ROC curves
roc_score_vec	ROC score (AUC)
round_probs	auxiliary function for rounding probabilities
RPS	Ranked Probability score
RPSS	Ranked Probability skill score
run_dimension_check_ens_fc_score	Auxiliary Function
run_dimension_check_terc_forecast	Auxiliary Function
season_strings_to_int	Auxiliary function for decoding season-strings
set_spatial_grid	Set Spatial Grid Attributes to a Data Table
space_dimvars	Auxiliary function
SRC	Compute the slope of the reliability curve
tc_cols	Tercile column names
tendency_diag	Tendency diagram from a data table containing tercile forecasts.
tercile_plot	Function for plotting terciles
tfc_from_efc	Get tercile probability forecast from ensemble forecasts
tfc_gha_plot	Plotting function with different map for Greater Horn of Africa
tfc_plot	plotting function for tercile forecasts
time_dimvars	Auxiliary function
upscale_chirps	Upscales monthly CHIRPS data to a coarser grid
upscale_regular_lon_lat	Function for matching data between different grids
ver_map	Plot a verification map of percentiles
ver_map_chirps	Plot a verification map of percentiles based on precomputed CHIRPS quantiles.