function = main_xls_input(file, m, sigma, gamma, thres, nei);
clc;clear;%close all;
[num txt raw] = xlsread('wrap.xls');
s = size(num);
feature = num(:,s(2)-1);
N = s(1);
f = num(:,s(2));
%% parameters
m = ceil(N*.4); % sampling size
sigma = 0.01;
gamma = 1; % regularizer for optimization
thres = 0.1;
nei = 3;
fprintf('Sample size: %d\n', m);
fprintf('number of estimations: %d\n', N-m);
fprintf('Thresholding edges less than: %f\n', thres);
fprintf('Constructing %d - neighbor graph: %f\n', nei);
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