Comparing two scatterplot matrices

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I have these two 39x2 matrices that each form a similar grid when plotted. I would like a way to compare the differences between the two for the position of each point, preferably a histogram for the x-axis and a histogram for the y-axis that shows the amount of difference between the two, so as to illustrate any amount of "bowing" from one grid to the next. Here is how I plot these two grids together, followed by the two matrices:

figure('Name','Grid Comparison');
hold on;
scatter(mat1(:,1), mat1(:,2),3,'r');
scatter(mat2(:,1), mat2(:,2),3, 'g');
ax = gca; 
ax.Color = 'k';
ax.YDir = 'reverse';
        29.9  326.7      31.4  329.7
        31.6  183.3      32.2  187.1
        38.0  398.3      41.8  258.3
        40.4  255.2      41.6  400.9
        108.1  470.8      112.9  472.4
        109.4  399.5      113.1  116.4
        110.6  327.9      113.1  187.7
        112.3  184.5      113.2  258.5
        111.6  256.2      113.4  330.0
        113.2  113.0      113.0  401.2
        114.0  41.8      113.9  44.7
        181.1  400.2      184.2  259.0
        180.0  481.5      184.0  330.0
        182.2  328.5      183.9  481.7
        183.2  256.7      185.2  36.5
        184.7  114.2      184.0  401.2
        185.1  33.1      184.8  116.5
        252.7  401.1      255.0  187.4
        251.7  472.4      255.1  258.7
        253.3  329.5      255.0  330.8
        254.9  257.9      254.6  400.8
        255.5  186.5      254.9  472.8
        256.9  43.9      255.4  45.0
        256.2  115.4      255.5  116.6
        324.9  330.6      326.0  259.3
        324.2  401.9      325.6  330.2
        326.5  187.4      325.7  401.7
        326.2  259.0      326.5  37.3
        329.0  34.6      326.3  187.6
        394.9  474.3      397.0  331.3
        396.1  331.3      396.5  473.6
        398.3  188.5      398.0  187.9
        397.5  260.1      397.8  259.2
        400.3  45.2      398.6  45.1
        467.2  403.8      468.1  403.5
        468.6  260.6      469.2  259.0
        471.0  117.5      469.5  117.3
        477.0  332.3      478.7  331.5
        479.0  189.6      479.0  188.0

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k5jyw153vcxb 2016-7-25

在 MATLAB Online 中打开

I've found a way that suffices to do the job I want for the proper sorting, but I was hoping for an easier way. This is the function I created to sort them.

ind = 1; sorted_array1 = zeros(39,2); sorted_array2 = zeros(39,2);
for i = 1:39
  for j = 1:39
      if abs(array1(i,1) - array2(j,1)) < 10 && abs(array1(i,2) - array2(j,2)) < 10
          sorted_array1(ind,:) = array1(i,:);
          sorted_array2(ind,:) = array2(j,:);
          ind = ind + 1;
      end
  end
end