Calculate the raw Hu image moment Mij.

arith

Spatial forecast verification refers to verifying weather forecasts when the verification set (forecast and observations) is on a spatial field, usually a high-resolution gridded spatial field. Most of the functions here require the forecast and observed fields to be gridded and on the same grid. For a thorough review of most of the methods in this package, please see Gilleland et al. (2009) <doi: 10.1175/2009WAF2222269.1> and for a tutorial on some of the main functions available here, see Gilleland (2022) <doi: 10.5065/4px3-5a05>.

Eric Gilleland

SpatialVx

Spatial Forecast Verification

Kim Elmore

Caren Marzban

Matt Pocernich

Gregor Skok

Mij function

<dl> <dt>x</dt>
<dd>A matrix.</dd> <dt>s</dt>
<dd>A two-column matrix giving the location coordinates. May be missing in which case they are assumed to be integers giving the row and column numbers.</dd> <dt>i,j</dt>
<dd>Integer giving the moment order for each coordinate x and y, resp.</dd></dl>

Arguments

Author

Raw Image Moments. — Mij

<dl>

 <dt>x</dt>
<dd>A matrix.</dd>

 <dt>s</dt>
<dd>A two-column matrix giving the location coordinates. May be missing in which case they are assumed to be integers giving the row and column numbers.</dd>

 <dt>i,j</dt>
<dd>Integer giving the moment order for each coordinate x and y, resp.</dd>

</dl>

Mij: Raw Image Moments.

Description

Usage

Value

Arguments

Author

Details

References

See Also

Examples