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IceCastV2
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Version
Version
2.1.0
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Install
install.packages('IceCast')
Monthly Downloads
24
Version
2.1.0
License
GPL (>= 2)
Maintainer
Hannah Director
Last Published
June 24th, 2019
Functions in IceCast (2.1.0)
Search functions
bg_water
Polygon of the non-regional ocean
get_region
Get polygons corresponding to regions
fit_weights
Compute weighting between two models
ecmwf_bin
Binary predictions from ECMWF ensemble, September 1993-2018
merge_conts
Merge contours
extract_coords
Function to extract coordinates.
full
Sample collection of completely ice-filled regions
mapxy
Get geodetic latitudes and longitudes
obs_9_2005_2007
Observed sea ice for September 2005-2007
get_map
Map one observation or prediction
discrep
Discrepancy maps for September 1993-2007 (lead time 2.5-months)
create_mapping
Map a set of observations and predictions
reg_info
List of information about each region
rm_holes
Remove holes in a polygon
obs_9_2008
Observed sea ice for September 2008
get_area
Calculate geodesic area
contig_zero
Find indices of sequences of contiguous zeros
cond_prob
Compute conditional probability of observed event
keep_poly
Keep only spatial polygons
gen_cont
Generate contours
land
Polygon of land
contour_shift
Apply contour-shifting to bias correct
interEx
Example of a line that contains self-intersections
dist_mat
Compute 'distances' among $n$ lines
inter_start_line
Add points where line connecting point sequence crosses start_line
currSecEx
Coordinates of a line segment with self-intersections
get_ind
Find indices in matrix
make_polygons
Create polygon from mapped points
int_line
Space points along a line
indiv_poly
Generate an individual polygon from a set of points
get_init_month
Get initialization month
land_mat
Binary matrix indicating where there is land
pars_1
Sample parameter information for generating a contour
obs_maps
Output from
create_mapping
function
map_curr_1
Sample output from
get_map
conv_to_grid
Convert
SpatialPolygons
object to a grid
sipSep2008
Ensemble estimated sea ice probability September 2008 (lead time 2.5 months)
get_coords
Extract coordinates from a spatial object of lines and points
sec_to_interp
Interpolate a section of line
ts_adj_mu
Trend Adjustment For
mu
get_dist
Find euclidean distance
untwist
Remove self-intersections
sipSep2006_2007
Ensemble sea ice probability for September 2006-2007 (lead time 2.5 months)
spatialCollEx
Spatial collection example
to_fit
Identify fully ice-covered and ice-free regions
train_ind
Find indices on which to train contour model
mappedPoints
Example of mapped points
obsSep2006_2007
Observed sea ice September 2006-2007
fit_cont_pars
Sets up MCMC to fit the parameters of the contour Model in R, then runs the sampler in C++
interp_new_pts
Interpolate along region boundaries
find_trans
Find transition points (points at the start/end of polygons)
keep_line
Keep only spatial lines
merged
Sample list of contours
obsSep2008
Observed sea ice September 2008
prob_map
Get probabilities on a grid from contours
prop_area
Proportion of total area by grid box
obsLEx
Coordinates of an observed line segment
pred_maps
Computed mappings for predictions for September 1993-2008
untwist_sec
Remove self-intersections from one section of a contour
predLEx
Coordinates of a predicted line segment
read_monthly_BS
Read in a set of bootstrap observations over a set of year
wght_mod
Function to weight two models
read_bootstrap
Read individual bootstrap binary file
pt_line_inter
Check if a point crosses a line segment
ppe_9_2008
Post-procesed ensemble forecast for 2008
quick_run
Simple evaluation of contour-shifting
ppe_9_2005_2007
Post-procesed ensemble forecast for 2005-2007
y_obs
Compute \(y\)
any_intersect
Check if a line has intersecting segments
bound_info
Get boundary info
clim_9_2005_2007
Climatology forecast for 2005-2007.
RunMCMC
Run MCMC to Fit Contour Model
all_regions
Polygon of all regions
calc_pars
Compute Parameters Estimates
clim_9_2008
Climatology forecast for 2008.
censor
Truncate simulated line lengths based on a list of bounds
check_intersect
Check if line segments intersect