DISCRIMINANT ANALYSES Meaning and
Definition
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Discriminant analysis refers to a statistical technique used in data analysis and multivariate statistics to determine the predictive power of a set of variables in discriminating between different groups or categories. It is also known as discriminant function analysis or canonical discriminant analysis.
Discriminant analysis aims to find a linear combination of variables that can maximize the separation between two or more groups. It is commonly used in various fields such as psychology, sociology, marketing, and finance to understand the factors that significantly discriminate between different groups or to develop classification models for predicting group membership.
The discriminant analysis involves two key steps: estimation and prediction. During the estimation phase, the discriminating variables are identified by calculating the discriminant function coefficients, which are used to create a linear equation. The linear equation represents a discriminant function and is used to differentiate between groups. In the prediction phase, the discriminant function is applied to new observations to classify them into appropriate groups based on their values on the discriminating variables.
The discriminant analysis provides several statistical outputs, including canonical correlation, Wilks' lambda, structure matrix, and group centroids, which help interpret the results and assess the discriminatory power of the variables. It allows researchers to identify the most important variables contributing to group separation, assess the overall accuracy of classification, and understand the relative contribution of the predictors.
Overall, discriminant analysis is a powerful statistical method that helps analyze complex data sets with multiple dependent variables and provides insights into the discriminatory ability of variables in distinguishing between groups.
Common Misspellings for DISCRIMINANT ANALYSES
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Etymology of DISCRIMINANT ANALYSES
The word "discriminant analyses" is derived from Latin and English.
The term "discriminant" comes from the Latin word "discriminans", which is the present participle of the verb "discriminare" meaning "to perceive a difference" or "to separate". In mathematics and statistics, a discriminant is a function or formula that helps classify or distinguish between different objects or groups based on specific variables or characteristics.
The word "analyses" is the plural form of the noun "analysis", which originates from the Greek word "analyein" meaning "to loosen" or "to break up". In the context of scientific or statistical studies, analysis refers to the process of examining and interpreting data to discover patterns, relationships, or insights.
Similar spelling word for DISCRIMINANT ANALYSES
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