# Enter your data for Nonparametric Distribution Analysis (Arbitrary Censoring)

Stat > Reliability/Survival > Distribution Analysis (Arbitrary Censoring) > Nonparametric Distribution Analysis

Complete the following steps to enter your data. For more information on censored data, go to Data censoring.

1. In Start variables, enter the column that contains the start times. You can enter up to 50 columns (for 50 different samples). The start times in the column depend on how the data are censored.
Observation Value in Start column
Exact failure time Failure time
Right censored Time after which the failure occurred
Left censored * (missing value symbol)
Interval censored Time at start of interval during which the failure occurred
2. In End variables, enter the column that contains the end times. You can enter up to 50 columns (for 50 different samples). The end times in the column depend on how the data are censored.
Observation Value in End column
Exact failure time Failure time
Right censored * (missing value symbol)
Left censored Time before which the failure occurred
Interval censored Time at end of interval during which the failure occurred
3. If you have frequency data for each variable, in Frequency columns (optional), enter a column that indicates the number of units for each failure time or censoring time.
4. If all the samples are stacked in one column, select By variable and enter a column of grouping indicators.
In this worksheet, the Start column contains the start times and the End column contains the end times. The Frequency column (optional) indicates the number of units that are included in each interval. For example, 20 units are left censored at 10,000 hours. 2 units are exact failures at 30,000 hours. 26 units are interval censored between 30,000 and 40,000 hours. 190 units are right censored at 60,000 hours.

C1 C2 C3
Start End Frequency
* 10000 20
10000 20000 10
20000 30000 10
30000 30000 2
30000 40000 26
40000 50000 40
50000 60000 55
60000 * 190
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