calcHnn: grid to point nearest neighbours
In garciapintado/rDAF: An R Data Assimilation Framework
Description
Usage
Arguments
Details
Value
Description
Fill in a LOGICAL matrix indicating for each location in a [p] set the
corresponding nearest neighbour in a [ng] grid.
Usage
1
calcHnn(G, gLON, gLAT, pos)
Arguments
G
LIST, a codegmeta6 object as defined by the package
spgrass6 with grid metadata for regular grids
gLON
REAL, [ng] coordinates for irregular grids, longitude
gLAT
REAL, [ng] coordinates for irregular grids, latitude
pos
REAL, [p,2], point coordinates
Details
This function would most commonly be called by analyseUG.
For irregular grids, nearest grid neighbours to the point dataset is
calculated via nn2dist in the package splancs.
Value
A [p,ng] dgCMatrix as provided by the package Matrix, where
p is the number of point locations, and ng is the number
of cells in the grid. The grid is assumed to be sortened starting fro
the upper left and advancing by row.
garciapintado/rDAF documentation built on May 25, 2019, 7:26 p.m.
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Description Usage Arguments Details Value
Description
Fill in a LOGICAL matrix indicating for each location in a [p] set the corresponding nearest neighbour in a [ng] grid.
Usage
1 | calcHnn(G, gLON, gLAT, pos)
|
Arguments
G |
LIST, a codegmeta6 object as defined by the package spgrass6 with grid metadata for regular grids |
gLON |
REAL, [ng] coordinates for irregular grids, longitude |
gLAT |
REAL, [ng] coordinates for irregular grids, latitude |
pos |
REAL, [p,2], point coordinates |
Details
This function would most commonly be called by analyseUG.
For irregular grids, nearest grid neighbours to the point dataset is
calculated via nn2dist in the package splancs.
Value
A [p,ng] dgCMatrix as provided by the package Matrix, where
p is the number of point locations, and ng is the number
of cells in the grid. The grid is assumed to be sortened starting fro
the upper left and advancing by row.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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