This is a case of comparing the utility of tools intended for completely different applications. Cartesian plots are meant to visualize data with an abstract functional dependence f(x), where the independent variable is (or has properties that are meaningful if thought of as) a rankable scalar of potentially infinite range (count, instance, time, money, distance etc.). "Radar" plots are indended for data (R) whose dependence on the independent variable (θ) is cyclical in nature. Rather than higlight the correlation or evolution of trends between factors, these plots show asymmetries within the cycle and are of immense value for analyzing/predicting behaviors of cyclical systems or any system in repeating conditions. When used as intended, they are obviously incomperable.
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