**5.2 Comparison by R2**

R2 is a statistic that will give some information about the goodness of fit of a model. In regression analysis, the coefficient of determination is a statistical

measure of how well the regression line approximates the real data points. R<sup>2</sup> lies in between 0 to 1. If the value R<sup>2</sup> is 1 then it interprets that the predicted value is exactly equal to the actual value. When the result obtained from different MCDM methods are compared with each other the value of R<sup>2</sup> is shown in **Table 11**.

When the results obtained from different MCDM techniques are compared using regression analysis the maximum value of R2 obtained is 1 among different combinations of COPRAS, MOORA, TOPSIS and Modified TOPSIS and the least value is 0.81 between VIKOR and COPRAS, MOORA and Modified TOPSIS. From the **Table 11** it can be concluded that there is some penalty for choosing a wrong MCDM method for ranking of alternatives. **Figures 2**–**11** are the comparative figure of different MCDM techniques.

**Figure 2.** *Comparison of result obtained from COPRAS and MOORA.*

**Figure 3.** *Comparison of result obtained from COPRAS and VIKOR.*

**Figure 4.** *Comparison of result obtained from COPRAS and TOPSIS.*

*Comparison of Cross-Entropy Based MCDM Approach for Selection of Material in Sugar… DOI: http://dx.doi.org/10.5772/intechopen.98242*

**Figure 5.** *Comparison of result obtained from COPRAS and modified TOPSIS.*

**Figure 6.** *Comparison of result obtained from MOORA and VIKOR.*

**Figure 7.** *Comparison of result obtained from MOORA and TOPSIS.*

**Figure 8.** *Comparison of result obtained from MOORA and modified TOPSIS.*

**Figure 9.**

*Comparison of result obtained from VIKOR and TOPSIS.*

**Figure 10.** *Comparison of result obtained from VIKOR and modified TOPSIS.*

**Figure 11.** *Comparison of result obtained from TOPSIS and modified TOPSIS.*
