pca
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Contents: Description, Arguments, Usage, Examples, Images, Sub-Functions, Related Functions, Source Supported Under Version: >1.00
Description Principal Component Analysis Compute the principal components, eigen values and eigen vectors of a numeric array
Arguments and Return Values Arguments: A numeric array and ignore value Return Value: A structure containing the eigen value and vectors and the rotated data
Usage Syntax: pca(image [, ignore]) 'image' - A numeric array 'ignore' - An optional ignore value for matrix calculations
Examples dv> a 600x600x3 array of byte, bip format [1,080,000 bytes] dv> b=pca(a) struct, 2 elements e: 4x3x1 array of float, bsq format [48 bytes] data: 600x600x3 array of double, bip format [8,640,000 bytes]
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Recent Library Changes Created On: 02-15-2006 |