这个excel模板比较好，可以直接拷贝数据进去从而最终计算bootstrap，
具体方法：

1.  Insert data into the yellow cells (inserting or deleting rows as necessary) -  data sheet* 2. Check that the ranges in  the orange cells match the data - data sheet, table 1 & bootstrapping 3. Select ellipses by changing  the confidence levels in the blue cells - table 3 然后大功告成。