Randomized trial of two treatment regimens for lung cancer.
data(veteran)| time | survival time |
| status | censoring status |
| trt | 0=standard 1=test |
| celltype | 1=squamous, 2=smallcell, 3=adeno, 4=large. |
| karno | Karnofsky performance score. minimum 10 and maximum 99 in original scale. |
| diagtime | months from diagnosis to randomization. minimum 1 and maximum 87 in original scale. |
| age | in years. minimum 34 and maximum 81 in original scale. |
| prior | prior therapy 0=no, 1=yes. |
All the variables, except for the response, have been scaled to [0,1] interval. To transform back to the original scale, use the formula: $$x=min+(max-min)*z.$$