Materials 2025 , 18 , 228
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Figure 3. Graphical representation of the positions (ranks) of the 29 tested tissue products by each of the 4 used methods (TSA, SUB, KES, and OPT). From Table 5, differences can be observed in the comparisons between methods, being positive or negative, and higher or lower, depending on the positions occupied by the tissue products in each one of the used methods. If a particular tissue product goes down on the table comparatively to the reference method, the difference will be positive, and, if it goes up, it will be negative. If the product displaces many positions, the difference will be higher and the corresponding cell will be represented with a darker gray color. On the other hand, if it only displaces a few positions, the difference will be lower and the corresponding cell will be represented with a lighter gray color. All these cases can be seen throughout Table 5. In terms of the biggest differences that were registered, the highest negative value ( − 24) can be seen on the second position from the end for the comparison TSA versus SUB (darkest cell of the second column of Table 5), whereas the highest positive value (+20) can be seen on the fifth position for the comparison SUB versus OPT (darkest cell of the sixth column of Table 5). The lowest difference (0) appears on several occasions, such as on the twelfth position of the comparison TSA versus KES, on the fourth position of the comparison TSA versus OPT, and so on for the remaining cases. Now, concerning the calculated average of the differences verified between approaches, it is always zero because the negative and the positive differences for each comparison cancel each other out. However, the calculated standard deviations are not zero, and they are revealed to be the lowest for the comparison KES versus OPT, with a value of 6.5. The second lowest standard deviation was registered for the comparison TSA versus KES, with a value of 6.7. This fact can also be verified through Figure 4, by observation of their corresponding graphical representations, which, globally, reveal lower bars. All the other comparison cases are associated with higher standard deviations, being the highest registered for the comparison SUB versus OPT, with a value of 10.7. The corresponding graphical representation of this last comparison, shown in the fifth graph of Figure 4, also suggests the same with bars that, in general, are higher in relation with the other comparison cases. What this means, basically, is that the SUB and OPT methods are the least concordant, whereas the KES and OPT methods are the most concordant of all. Table 6 synthesizes the information of the
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