Methods to compare the principles and calculation methods of cumulative incidence rate, incidence density, and risk factors adjusted incidence density.
方法比较医院感染累积发病率、发病密度和危险因素调整的发病密度的计算原理。
Calculation case shows that in the given initial value and restraints, convexity gap model can lessen the exposure position of interest rate risk and increase yields.
计算实例表明，凸度缺口模型对于给定的初始值和约束条件，可以较好地减少利率风险的暴露头寸和提高收益；
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