# Apply Statistical Post-Processing to Improve Sea Ice Predictions

## Documentation for package ‘IceCast’ version 1.2.0

- DESCRIPTION file.
- User guides, package vignettes and other documentation.

## Help Pages

allRegions | Polygon of all regions
anyIntersect | Check if a line has intersecting segments
bgWater | Polygon of the non-regional ocean
checkIntersect | Check if line segments intersect
contourShift | Apply contour-shifting to bias correct
convToGrid | Convert 'SpatialPolygons' object to a grid
createMapping | Map a set of observations and predictions
currSecEx | Coordinates of a line segment with self-intersections
discrep | Discrepancy maps for February 1981-2011
emFeb19811982 | Ensemble mean sea ice concentration for February 1981-1982 (initialized in November)
emFeb2012 | Ensemble mean sea ice concentration for February 2012 (initialized in November)
extractCoords | Function to extract coordinates.
findHoles | Find holes in a polygon
getArea | Calculate geodesic area
getCoords | Extract coordinates from a spatial object of lines and points
getDist | Find euclidean distance
getInd | Find indices in matrix
getInitMonth | Get initialization month
getMap | Map one observation or prediction
getRegion | Get polygons corresponding to regions
interEx | Example of a line that contains self-intersections
intLine | Space points along a line
keepLine | Keep only spatial lines
keepPoly | Keep only spatial polygons
land | Polygon of land
landMat | Binary matrix indicating where there is land
makePolygons | Create polygon from mapped points
mappedPoints | Example of mapped points
mapxy | Get geodetic latitudes and longitudes
obsFeb19811982 | Observed sea ice February 1981-1982
obsFeb2012 | Observed sea ice February 2012
obsLEx | Coordinates of an observed line segment
predLEx | Coordinates of a predicted line segment
quickRun | Simple evaluation of contour-shifting
readBootstrap | Read individual bootstrap binary file
readMonthlyBS | Read in a set of bootstrap observations over a set of year
regionInfo | Information on the regions
rmHoles | Remove holes in a polygon
spatialCollEx | Spatial collection example
untwist | Remove self-intersections
untwistSec | Remove self-intersections from one section of a contour