Results 231 to 240 of about 291,396 (287)

Regression with Censored Data

Biometrika, 1982
SUMMARY There are four regression techniques currently available for use with censored data which do not assume particular parametric families of survival distributions. They are due to (i) Cox (1972), (ii) Miller (1976), (iii) Buckley & James (1979), and (iv) Koul, Susarla & Van Ryzin (1981).
Miller, Rupert, Halpern, Jerry
openaire   +2 more sources

Censored data

WIREs Computational Statistics, 2010
AbstractThe analysis of censored data is a major issue in survival studies. Censored data are together with truncated data, missing data, current status data, and others, among the complex data structures in which only partial information on the variable(s) of interest is available.
openaire   +1 more source

Quantile Autoregression for Censored Data

Journal of Time Series Analysis, 2016
Quantile autoregression (QAR) is particularly attractive for censored data. However, unlike the standard regression models, the autoregressive models must take account of censoring on both response and regressors. In this article, we show that the existing censored quantile regression methods produce consistent estimators for QAR models when using only
Choi, Seokwoo Jake, Portnoy, Stephen
openaire   +2 more sources

Evaluation of censored contamination data†

Food Additives and Contaminants, 1995
Laboratory measures of low-level contamination are typically strongly skewed, and observations below a specified detection limit are recorded merely as not detectable or less than a specified limit. In these circumstances, a full description of the distribution requires assumptions about the form of the lower tail.
I G, Vlachonikolis, F H, Marriott
openaire   +2 more sources

censored data models

1987
The censored normal regression model considered by Tobin (1958), also commonly known as the ‘tobit’ model, is the following: $$y_i^* = \beta {x_i} + {u_i}.\quad {u_i} \sim IN(0,{\sigma ^2})$$ The observed y i are related to y i * according to the relationship $$\eqalign{ & {y_i} = y_i^*\quad if\,y_i^* > {y_0} \cr & = {y_0}\quad \;\quad ...
openaire   +1 more source

Laplace regression with censored data

Biometrical Journal, 2010
AbstractWe consider a regression model where the error term is assumed to follow a type of asymmetric Laplace distribution. We explore its use in the estimation of conditional quantiles of a continuous outcome variable given a set of covariates in the presence of random censoring. Censoring may depend on covariates.
Bottai, Matteo, Zhang, Jiajia
openaire   +2 more sources

Renovated Scatterplots for Censored Data

Biometrika, 1995
Summary: In simple linear regression where the response variable has been subject to right-censoring, censored points in the scatterplot of observed data are moved vertically to create a renovated scatterplot where the bias of censoring is removed. The relationship to least squares estimation and the effect on regression diagnostics are examined in the
Smith, Peter J., Zhang, J.
openaire   +1 more source

Linear Regression with Censored Data

Biometrika, 1979
SUMMARY We give a method of estimating parameters in the linear regression model which allows the dependent variable to be censored and the residual distribution to be unspecified. The method differs from that of Miller (1976) in that the normal equations rather than the sum of squares of residuals are modified and this appears to overcome the ...
Buckley, Jonathan, James, Ian
openaire   +2 more sources

Home - About - Disclaimer - Privacy