The residuals which often used have ordi nary residualsδ i ?the internally studentized residuals r i and externally studentized residuals r i .
残差分析在回归诊断中十分重要,常用的残差有普通残差δi、内学生化残差ri和外学生化残差ri等。
Then based on the IGGⅢ?scheme which is suitable for numeration in the surveying field,the paper constructs equivalent weight function by studentized residual for robust estimation.
首先分析了现有几种等价权函数的优缺点,然后以适合于测量领域计算的IGGⅢ方案为基础,利用服从于t分布的学生化残差构造等价权函数来进行抗差估计。