SVD - Singular Value Decomposition

Description

The svd Baustein computes the singular value decomposition of two data sets.

Command Line Syntax

svd [--components=<n>] [-h|--help] [-l|--lat-cor] [-O|--overwrite] [--percentage=<n>]
[-V|--verify] [-v|--version] <input-file1>:<var1> <input-file2>:<var2> <output-file1> <output-file2>
 
<input-file1>:<var1> The name of the first NetCDF input file and the name of the variable in this file.
<input-file2>:<var2> The name of the second NetCDF input file and the name of the variable in this file.
<output-file1> The name of the output file for the first data set.
<output-file2>
 The name of the output file for the second data set.
Long Option Short Option Description
--components=<n> Compute the first n principal components. If this option is omitted the first 10 principal components are computed.
--help -h Print a brief description of the tool and its options.
--lat-cor -l Correct the data and the principal components for the latitude.
--overwrite -O Overwrite the output files if they exist.
--percentage=<n> Ignore data points which have valid data during less than n % of the time. If this option is not specified data points which have valid data during less than 10% of the time are ignored.
--verify -V Verify the computations.
--version -v Show the version information of this tool.

Examples

If you want to compute the first five SVDs of sea surface temperatures and wind speeds stored in a NetCDF file ssd.nc, enter the following command: 
svd --components=5 ssd.nc:SST ssd.nc:wndspd SST-svds.nc wndspd-svds.nc