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Kaplan-Meier for Multiple Censored Data
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This example validates the calculation for the Kaplan-Meier (KM) estimator for multiple censored data.
Reference Case
Table 3.2 on page 54 in the book Statistical Methods for Reliability Data by Dr. Meeker and Dr. Escobar, John Wiley & Sons, 1998.
Data
| Number in State
|
Last Inspected (Year)
|
State F/S
|
State End Time (Year)
|
| 4 |
0.01 |
F |
1
|
| 99 |
0.01 |
S |
1
|
| 5 |
1 |
F |
2
|
| 95 |
1 |
S |
2
|
| 2 |
2 |
F |
3
|
| 95 |
2 |
S |
3
|
Result
| Number in State
|
Last Inspected (Year)
|
State F/S
|
State End Time (Year)
|
K-M Estimator (%)
|
| 4 |
0.01 |
F |
1 |
1.33
|
| 5 |
1 |
F |
2 |
3.84
|
| 2 |
2 |
F |
3 |
5.82
|
Results in Weibull++
The coordinates of each point in the following plot shows the failure time and the corresponding Kaplan-Meier estimator of the probably of failure at each failure time.
