Dfbeta Test Stata. Is that a general problem when using a categorical variable as X or does anybody know a solution to our problem. When selected form the Save.
If observations have the value of Cooks D statistics larger than 4n If the DFITS statistics whose absolute values are larger than 2sqrtkn. Dfits is defined as dfits i Rstudent. Each of these indices have a value for each case in the known as data set.
The simplified format is as follow.
Where Rstudent is the studentized residual. Here you can see that observation 9 is influential because the regression line changes quite dramatically when it is omitted. In particular we will see that the dfbeta statistics can be easily computed for any command that accepts the jackknife prefix. Each of these indices have a value for each case in the known as data set.
