cluster analysis

cluster analysis
The classification of objects into different groups, or more precisely, the partitioning of a data set into subsets (clusters), so that the data in each subset (ideally) share some common trait - often proximity according to some defined distance measure.

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  • Cluster analysis — The result of a cluster analysis shown as the coloring of the squares into three clusters. Cluster analysis or clustering is the task of assigning a set of objects into groups (called clusters) so that the objects in the same cluster are more… …   Wikipedia

  • Cluster analysis — A statistical technique that identifies clusters of stocks whose returns are highly correlated within each cluster and relatively uncorrelated between clusters. Cluster analysis has identified groupings such as growth, cyclical, stable and energy …   Financial and business terms

  • cluster analysis — A statistical technique that identifies clusters of stocks whose returns are highly correlated within each cluster and relatively uncorrelated across clusters. Cluster analysis has identified groupings such as growth (growth stocks), cyclical (… …   Financial and business terms

  • cluster analysis — A form of multivariate analysis , of which the purpose is to divide a set of objects (such as variables or individuals), characterized by a number of attributes, into a set of clusters or classes, in such a way that the objects in a class are… …   Dictionary of sociology

  • Cluster Analysis — An investment approach that places securities into groups based on the correlation found among their returns. Securities with high positive correlations are grouped together and segregated from those with negative correlation. Between each… …   Investment dictionary

  • Cluster analysis (in marketing) — Cluster analysis is a class of statistical techniques that can be applied to data that exhibit “natural” groupings. Cluster analysis sorts through the raw data and groups them into clusters. A cluster is a group of relatively homogeneous cases or …   Wikipedia

  • cluster analysis — noun Date: 1948 a statistical classification technique for discovering whether the individuals of a population fall into different groups by making quantitative comparisons of multiple characteristics …   New Collegiate Dictionary

  • cluster analysis — a method of grouping taxa on the basis of similarity or distance …   Dictionary of ichthyology

  • cluster analysis — in epidemiology, statistical techniques used to analyze observations that are clustered in subgroups …   Medical dictionary

  • cluster analysis — / klʌstər əˌnæləsɪs/ noun a method whereby samples are classified into groups according to characteristics …   Marketing dictionary in english

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