function [fit, vaf, outperm] = cirsarobfnd_ac(prox, inperm, kblock)
% CIRSAROBFND fits a strongly circular anti-Robinson matrix using iterative projection to
% a symmetric proximity matrix in the $L_{2}$-norm based on a permutation
% identified through the use of iterative quadratic assignment.
% PROX is the input proximity matrix ($n \times n$ with a zero main diagonal
% and a dissimilarity interpretation);
% INPERM is a given starting permutation (assumed to be around the
% circle) of the first $n$ integers;
% FIT is the least-squares optimal matrix (with variance-accounted-for
% of VAF) to PROX having a strongly circular anti-Robinson form for the row and column
% object ordering given by the ending permutation OUTPERM. KBLOCK
% defines the block size in the use the iterative quadratic assignment
% routine.
[target,vaf,outperm] = cirarobfnd_ac(prox,inperm,kblock);
[fit,vaf] = cirsarobfit(prox,outperm,target);