## Censored and truncated data

Censored data point are those whose measured properties are not known
precisely, but are known to lie above or below some limiting sensitivity.
Truncated data points are those which are missing from the sample altogether
due to sensitivity limits.

- ASURV
- Astronomy survival analysis for right- and left-censored data including the
Kaplan-Meier estimator, several two-sample tests, bivariate correlation
measures and linear regressions.
** (P) **
- SURVAN
- Survival calculations including Kaplan-Meier estimation, log-rank and
Gehan k-sample tests, Cox proportional haxards and logistic regression.
(P)
- Partial correlation
for censored data
- A test for partial correlation between three variables, any or all of which
are subject to censoring, based on a generalized Kendall's tau.
- Mean & standard deviation
- Maximum likelihood estimation of a univariate normal population.
- Linear regression
- Maximum likelihood multivariate linear regression with censoring in the
independent variable.
- Mean of truncated
multivariate dataset
- Maximum likelihood estimate of mean and covariance of the truncated
multinormal distribution.
- Mixture models for
truncated data
- Fits mixture of normals to grouped and truncated data.
- Multivariate two-sample test
with censoring
- Wei-Lachin, generalized Wilcoxon and log-rank tests for multivariate data.
- Bounded variable least
squares
- Linear least squares problems with upper and lower bounds on the
variables.

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