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cluster analysis. Cluster Analysis ... natural" groupings. Cluster analysis
sorts through the raw data and groups them into clusters. ...
... K-means Cluster Analysis. K-means cluster ... selected characteristics. ? TwoStep
Cluster Analysis. This procedure is relatively new. It ...
... Cluster 1 and 4 from the 4 cluster analysis seemed to be merged through commonalities
into one group (Cluster 1). Cluster 1 was found to be the only group ...
... So number of machines required = 2 Number of workers = 2 CLUSTER ANALYSIS Number
of Work stations = 18 Number of Workers = 18 Manning level = 1 Since the work ...
... These include: logistic regression, conjoint analysis, cluster analysis
and factor analysis. This rapport contains six chapters. ...
Submitted by satish_bemba on October 14, 2006
Category: Business
Words: 813 | Pages: 4
Views: 232
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Cluster Analysis
Ref : www.wikipedia.com, www.clustan.com
Cluster analysis is a class of statistical techniques that can be applied to data that exhibits "natural" groupings. Cluster analysis sorts through the raw data and groups them into clusters.
A cluster is a group of relatively homogeneous cases or observations. Objects in a cluster are similar to each other. They are also dissimilar to objects outside the cluster, particularly objects in other clusters.
Clustering is the classification of similar 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.
The diagram below illustrates the results of a survey that studied drinkers' perceptions of spirits (alcohol). Each point represents the results from one respondent. The research indicates there are four clusters in this market.
Another example is the vacation travel market. Recent research has identified three clusters or market segments. They are the: 1) The demanders - they want exceptional service and expect to be pampered; 2) The escapists - they want to get away and just relax; 3) The educationalist - they want to see new things, go to museums, go on a safari, or experience new cultures.
In marketing, cluster analysis is used for:
Segmenting the market and determining target markets
Product positioning and New Product Development
Selecting test markets
The basic procedure
1. Formulate the problem - select the variables that you wish to apply the clustering technique to.
2. Select a distance measure - various ways of computing distance:
o Squared Euclidean distance - the square root of the sum of the squared differences in value for each variable
o Manhattan distance - the sum...
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