nnls

block principal pivoting algorithm

版本 1.0.0.0 (1014 字节)
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2006/5/2

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solves the linear least squares problem with nonnegative variables using the block principal pivoting algorithm in:
Portugal, Judice and Vicente, A comparison of block pivoting and interior point algorithms for linear least squares problems with nonnegative variables, Mathematics of Computation, 63(1994), pp. 625-643

引用格式

Uriel Roque (2026). nnls (https://ww2.mathworks.cn/matlabcentral/fileexchange/8157-nnls), MATLAB Central File Exchange. 检索时间: .

致谢

启发作品: zeroSR1, LBFGSB (L-BFGS-B) mex wrapper

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1.0.0.0

Algorithm corrected.
User can now select a random or a fixed initial permutation of the set of {1,...,n}
working with fixed permutations seems to be faster