Uncensored/right censored datamain topic
Uncensored/right censored dataEnter two columns for each sample - one column of failure (or censoring) times and a corresponding column of censoring indicators.
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Time |
Censor |
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The Time column contains failure times. |
53 60 53 40 51 99 35 53 . . . etc. |
F F F F F C F F . . . etc. |
The Censor column contains the corresponding censoring indicators: an F designates an actual failure time; a C designates a unit that was removed from the test, and was thus censored. |
Censoring indicators can be numbers, text, or date/time values. If you do not specify which value indicates censoring in the Censor subdialog box, Minitab assumes the lower of the two values indicates censoring, and the higher of the two values indicates an exact failure.
The data column and associated censoring column must be the same length, although pairs of data/censor columns (each pair corresponds to a sample) can have different lengths.