Rates of exponential growth in the time series for statewide confirmed infections for the states of Washington, California and New York.

These were calculated as piecewise slopes of the logarithmic representations of the time series shown in Fig 2. Both sum of squares and the Pearson goodness of fit statistic are also provided in each case.

上述指标通过对图2所示时间序列的对数形式求取分段斜率计算得到。每种情况下均同时提供了平方和与皮尔逊拟合优度统计量（Pearson goodness of fit statistic）。