منابع مشابه
Reliability Data Analysis in the Sas System
fitting of regression models to life data, where the life distribution location parameter is a linear function of covariates. The fitting yields maximum likelihood estimates of parameters of a regression model with a Weibull, exponential, extreme value, normal, lognormal, logistic, loglogistic, or generalized gamma distribution. The data can be complete, right censored, left censored, or interv...
متن کاملAnalysis of Ordered Categorical Data Using the Sas® System
In this talk we describe a method for combining a measure of association from several 2xC contingency tables. The columns in the 2xC tables are assumed to be ordered and the method uses the weighted least squares methodology of Grizzle, Starmer and Koch (1969). The method uses a transformation of the gamma statistic, a statistic proposed for the analysis of ordered contingency tables by Goodman...
متن کاملAnalysis of Count Data Using the SAS ® System
Count data is increasingly common in clinical research (Gardner, Mulvey and Shaw (1995); Glynn and Buring (1996)). Examples include the number of adverse events occurring during a follow up period, the number of hospitalizations, the number of seizures in epileptics, etc. It is straightforward to analyze the count data by using PROCEDURE GENMOD of SAS/STAT, but as it is going to be shown below,...
متن کاملStatistical Analysis of Clustered Data using SAS System
ABSTRACT Clustered data is very common, such as the data from paired eyes of the same patient, from multiple teeth of the same mouth, from animals of the same litter, from siblings in the same family. The key feature of clustered data is that outcomes from the same cluster are likely to be positively correlated. The proper analysis of clustered data requires taking this correlation into conside...
متن کاملDiallel Analysis Using Sas
A set of crosses produced by involving 'n' lines in all possible combinations is designated as diallel cross and the analysis of such crosses is known as diallel analysis. Such an analysis provides information on (i) the nature and amount of genetic parameters and (ii) general and specific combining ability of parents and their crosses, respectively. The two main approaches being followed for d...
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ژورنال
عنوان ژورنال: Computers & Geosciences
سال: 1977
ISSN: 0098-3004
DOI: 10.1016/0098-3004(77)90017-6