when leverage values are used?
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
- What are the cut-off values for identifying influential observations
- when leverage values are used?
- when deleted residuals are used?
- when Cook's Distance values are used? Textbook & SAS?
- when studentizied deleted residuals, i.e., Rstudent, are used?
- when dffits values are used?
- when dfbetas values are used?
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