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. 2014 Apr 28;4:4826. doi: 10.1038/srep04826

Figure 4. Statistical analysis of bi-modal asymmetric α-stable distribution fitting and multi-fractal analysis of stem cell division times.

Figure 4

(a) Comparison between the empirical PDF (black dots) of mouse stem cell division times (DTs) and the bi-modal Gaussian distribution (red line). (b) Comparison between the empirical PDF of mouse stem cell DTs and the bi-modal α-stable distribution for all 889 samples. The high p-value of 0.78 for the K-S test shows that the postulated bi-modal α-stable distribution cannot be rejected as a model. (c) Comparison between the empirical PDF of rat stem cell DTs and the bi-modal α-stable distribution for all 1055 samples. The p-value of 0.11 for the K-S test shows that the postulated bi-modal α-stable distribution cannot be rejected as a model. (d) Comparison between the empirical PDF of human MSC DTs and the bi-modal α-stable distribution for all 350 samples. The p-value of 0.81 for the K-S test shows that the postulated bi-modal α-stable distribution cannot be rejected as a model. (e) Multi-fractal spectrum as a function of Lipschitz-Holder mass exponent for mouse, rat and human muscle derived stem cell division times. (f) Generalized Hurst exponent as a function of q-th order moment for mouse, rat and human muscle derived stem cell division times.