massive transfer of risk-reliability book

book/code/ex_FN_curve_step_03.py

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+import numpy as np
+import matplotlib.pyplot as plt
+from mpl_toolkits.axisartist.axislines import AxesZero
+
+# FN curve
+
+fig = plt.figure(figsize=(8,6))
+ax = fig.add_subplot(axes_class=AxesZero)
+
+for direction in ["xzero", "yzero"]:
+    ax.axis[direction].set_axisline_style("-|>") # add arrows
+    ax.axis[direction].set_visible(True) # x and y from origin
+    
+for direction in ["left", "right", "bottom", "top"]:
+    ax.axis[direction].set_visible(False) # hide borders
+    
+N_fatalities = ['0', '10', '100','100']
+N_fatalities_loc = [0.03,0.33, 0.95, 0.95]
+
+pdf = ['0','$1.1 * 10^{-2}$', '$10^{-3}$','0']
+pdf_loc = [0.03,0.99, 0.66, 0.03]
+
+ax.step(N_fatalities_loc, pdf_loc, color= 'darkblue',linewidth=4)
+
+ax.set_xticks(N_fatalities_loc)
+ax.set_xticklabels(N_fatalities)
+
+ax.set_yticks(pdf_loc)
+ax.set_yticklabels(pdf)
+
+ax.set_title('FN curve, $1-F_{N}(n) = P(N > n)$', x=0.75, y=1.0)
+ax.set_xlabel('Fatalities')
+ax.set_ylabel('Probability')
+
+plt.savefig('ex_FN_curve_step_03_py.svg')