Censoring (statistics)
（重定向自Censored dependent variable）
![Example of five replicate tests resulting in four failures and one suspended time.](/Images/godic/202501/03/Censored_Data_Example.svg4048.png")
In statistics, engineering, economics, and medical research, censoring is a condition in which the value of a measurement or observation is only partially known.
For example, suppose a study is conducted to measure the impact of a drug on mortality rate. In such a study, it may be known that an individual's age at death is at least 75 years (but may be more). Such a situation could occur if the individual withdrew from the study at age 75, or if the individual is currently alive at the age of 75.