INSET <keyword-list> </ options>;
The box or table of summary information produced on plots made with the PROBPLOT statement is called an inset. You can use the INSET statement to customize the information that is displayed in the inset box as well as to customize the appearance of the inset box. To supply the information that is displayed in the inset box, you specify keywords corresponding to the information that you want shown. For example, the following statements produce a probability plot with the number of observations, the number of right-censored observations, the name of the distribution, and the estimated Weibull shape parameter in the inset:
proc lifereg data=epidemic;
model life = dose / dist = Weibull;
probplot;
inset nobs right dist shape;
run;
By default, inset entries are identified with appropriate labels. However, you can provide a customized label by specifying the keyword for that entry followed by the equal sign (=) and the label in quotes. For example, the following INSET statement produces an inset containing the number of observations and the name of the distribution, labeled "Sample Size" and "Distribution" in the inset:
inset nobs='Sample Size' dist='Distribution';
If you specify a keyword that does not apply to the plot you are creating, then the keyword is ignored.
If you specify more than one INSET statement, only the first one is used.
Table 4 lists keywords available in the INSET statement to display summary statistics, distribution parameters, and distribution fitting information.
Table 4: INSET Statement Keywords
| Keyword | Description |
|---|---|
| CONFIDENCE | Confidence coefficient for all confidence intervals |
| DIST | Name of the distribution |
| INTERVAL | Number of interval-censored observations |
| LEFT | Number of left-censored observations |
| NOBS | Number of observations |
| NMISS | Number of observations with missing values |
| RIGHT | Number of right-censored observations |
| SCALE | Value of the scale parameter |
| SHAPE | Value of the shape parameter |
| UNCENSORED | Number of uncensored observations |