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Table 15 Evaluation results of the fits of Zipf’s and Yule’s equations to the ranked frequency distribution of Polish phonemes

From: Statistical analysis of orthographic and phonemic language corpus for word-based and phoneme-based Polish language modelling

No. Equation R 2 RMSE
1 \(Z_{r} = \frac {0.095948}{r^{0.5}}\) 0.81180 1.0408·10−2
2 \(Y_{r} = \frac {0.095948}{r^{0.149}}\cdot 0.94^{r}\) 0.92198 6.7012·10−3