scp
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Contents: Description, Arguments, Usage, Examples Supported Under Version: >1.69 Current Davinci Version: 2.27 64-bit Safe: No
Description Computes the sums of cross products matrix for the input data
Arguments and Return Values Arguments: A numeric array and an axis Return Value: A numeric array
Usage Syntax: scp(obj = VAL [, axis = x/y/z]) The scp() function computes the sums of cross products matrix for the vectors specified in the 'obj' cube. The 'axis' parameter specifies the dimension along with the vectors are laid out. Say, the input 'obj' is an [m x n x w] matrix and the 'axis' has been specified as 'z' then: 'w' is the dimension of the a single input vector, and there are 'm x n' of them in the image cube. The default value for this parameter is 'z'.
Examples Assume that 'data' is a data cube of dimensions [3x4x5], then the following line will compute the sums of cross products matrix 'c' for the 3x5=15 input vectors of dimension=4 each. dv> data 3x4x5 array of float, bsq format [240 bytes] 0.764590 0.611329 0.013531 0.894059 0.853739 0.578765 0.210376 0.585063 0.310158 0.279368 0.174577 0.936107 0.299370 0.447376 0.990550 0.007483 0.579038 0.938315 0.112534 0.170555 0.685896 0.313794 0.501421 0.839884 0.919598 0.376773 0.673389 0.399142 0.126340 0.102502 0.694103 0.332728 0.768704 0.227432 0.069890 0.056398 0.270462 0.698306 0.015827 0.853593 0.178197 0.259137 0.603909 0.502429 0.583360 0.630653 0.586797 0.532714 0.312378 0.183963 0.169128 0.822097 0.197663 0.349818 0.964631 0.242891 0.883598 0.561978 0.779694 0.951827 dv> c = scp(data,y) 4x4x1 array of float, bsq format [64 bytes] 4.39159 3.59948 3.61228 2.82539 3.59948 4.92955 3.91447 3.85677 3.61228 3.91447 4.90606 3.93159 2.82539 3.85677 3.93159 4.95546 |
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Recent Core Changes Modified On: 03-27-2006 |
