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SpatialVx (version 0.1-2)

Spatial Forecast Verification

Description

Functions to perform most of the spatial forecast verification methods carried out in the Spatial Forecast Verification Inter-Comparison Project (ICP), and a few others. This first version only has the neighborhood methods, but the next version will have many more.

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Version

Install

install.packages('SpatialVx')

Monthly Downloads

265

Version

0.1-2

License

GPL (>= 2)

Maintainer

Eric Gilleland

Last Published

June 6th, 2012

Functions in SpatialVx (0.1-2)

FeatureAxis

Calculate the major (and minor) axis of a feature
Fourier2d

Function to compute the Fast Fourier Transform (FFT) of a gridded field.
FeatureSuite

Wrapper function to perform feature-based spatial verification
GeoBoxPlot

Geographic Box Plot
vxstats

Calculate some common traditional forecast verification statistics.
metrV

Calculate the binary location metric proposed in Zhu et al. (2011)
pphindcast2d

Function to perform the practically perfect hindcast neighborhood verification method
bearing

Find the bearing from one spatial location to another
kernel2dsmooth

Perform a onvolution smooth on a 2-d field.
convthresh

Convolution threshold feature identification
obs0426

Spatial Forecast Verification Methods Inter-Comparison Project (ICP) Test Cases and other example verification sets
spatMLD

Test for equal predictive ability on average over a regularly gridded space
griddedVgram

Variogram a gridded verification set
hoods2d

Calculate various neighborhood verification statistics for a gridded verification set.
wavePurifyVx

Apply traditional forecast verification after wavelet denoising
locperf

Localization performance measures
SpatialVx-internal

Internal functions for the SpatialVx package
waveIS

Intensity Scale (IS) verification
deltamm

Merge and/or match identified features within two fields
locmeasures2dPrep

Set up a list object for locmeasures2d
upscale2d

Perform upscaling neighborhood verification on a 2-d verification set
kernel2dmeitsjer

Create a kernel matrix
Sindex

Shape index
FQI

Functions for calculating the Forecast Quality Index
SpatialVx-package

Spatial Forecast Verification
centdist

Find the centroid distance between two owin objects
fss2dfun

Functions to calculate various verification statistics on possibly neighborhood smoothed fields.
Aindex

Area index
LocSig

Temporal block bootstrap keeping locations in space constant
GFSNAMfcstEx

GFS NAM example verification set
hoods2dPrep

Set up a list object that can be used by the hoods2d function.
locmeasures2d

Binary Image Measures
UKobs6

Example precipitation rate verification set (NIMROD)
fss2dPlot

Create several graphics for list objects returned from hoods2d
Cindex

Connectivity Index
FeatureMatchAnalyzer

Analyze Features of a Verification Set
hoods2dsmooth

Wrapper functions for kernel2dsmooth
abserrloss

Loss functions for applying the spatial prediction comparison test (SPCT)
hoods2dPlot

Function to make a quilt plot and a matrix plot.
surrogater2d

Create surrogate fields
MCdof

Estimate the distribution of the proportion of spatial locations that contain significant correlations with randomly generated data
spatbiasFS

Apply field significance method of Elmore et al. (2006)
saller

Functions to analyze features in a field (image)
waverify2d

High-Resolution Gridded Forecast Verification Using Discrete Wavelet Decomposition