UNCENSOR Version 2. 0

UNCENSOR is a program that estimates the mean, standard deviation and variance of a left censored data set. At present, the program can provide estimates for normal and two-parameter, lognormal data sets. Large (N > 20) and small (N < 20) data sets can be handled. UNCENSOR provides estimates by the application of several statistical methods. At present, these methods include the following: maximum likelihood; iterative order statistics; regression order statistics; bias correction of MLE for small sample size; one-step maximum likelihood; and bias correction of estimates from log transformed data.