%% Specify DataScale by Column
% Create a set of random 2-D points, then use uniquetol to group the points into vertical bands that have a similar (within tolerance) x-coordinate. Use these options with uniquetol:
% Specify ByRows as true since the point coordinates are in the rows of A.
% Specify OutputAllIndices as true to return the indices for all points that have an x-coordinate within tolerance of each other.
% Specify DataScale as [1 Inf] to use an absolute tolerance for the x-coordinate while ignoring the y-coordinate.

A = rand(1000,2);
DS = [1 Inf];
[C,IA] = uniquetol(A, 0.1, 'ByRows', true, ...
    'OutputAllIndices', true, 'DataScale', DS);

%
% Plot the points and average value for each band.

hold on
for k = 1:length(IA)
    plot(A(IA{k},1), A(IA{k},2), '.')
    meanAi = mean(A(IA{k},:));
    plot(meanAi(1), meanAi(2), 'xr')
end

% Copyright 2015 The MathWorks, Inc.