cluster analysis

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    Interpreting a hierarchical cluster analysis using dendrogram

    Can anyone help me to figure out how to find the number of clusters I have in a hierarchical cluster analysis, which I'm doing in SPSS please? I heard that Ward's method was the best to use to begin looking at how many clusters there are in a data set. I have around 200 participants and am...
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    Cluster analysis with conjoint analysis data

    Hello everybody, My team and I have an assignment to run a conjoint analysis with SPSS. So far, we were able to make the orthogonal design to generate 16 cards and run a survey with respondents. Then, we were able to run the conjoint analysis in SPSS to get the Utility for each attribute...
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    How to assign new data to an existing clustering

    This is the situation. First, I performed factor analysis on 20 continuous variables, and reduced those to 10 factors using SPSS. Then, I did k-means cluster analysis and through trial & error came up with a 6 cluster solution. What I now need to accomplish is being able to predict which of...
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    How to input distance matrix in SPSS to do Twostep cluster analysis?

    I already have a distance matrix (1609*1609) and each distance is between 0~1. I want to cluster 1609 items into natural groups by using Twostep cluster in SPSS. I want to use the distance matrix as input for Twostep cluster analysis. How to modify the syntax to do that? Or I cannot do it...
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    Help with interpretation

    Hello everyone, I tried to do cluster analysis for my class, but I'm not sure how to interpret the plot I got. Can anyone help me with that please? Thanks, Tomer.
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    Cluster Analysis on Big data

    I have a very large data set on booking price of the hotel packages which is containing approximately 10 columns and 100,000 rows. Majority of the variables are categorical here while there is only one continuous variable (i.e. price). Categorical variables are Cabin class, Board basis, In...
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    Which cluster analysis methods to use to analyze purchase behavior with time?

    Hello everyone, I quite new to cluster analysis, but read through a fair amount of material, still I'm puzzled with the following task. Performing cluster analysis on my customers, using the follwing data set SubjectN; Week1 Purchase; Week2 Purchase;.....; Week12 Purchase These...
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    [Clustered Robust Standard Error] - Custering

    I am investigating the effects of age and exercise in protein expression in mouse motor neurons. I have four groups each with a limited number of measurements associated with it. Group (number of mice) Young (6) Young exercised (3) Old...
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    SPSS Cluster Analysis

    Hi....I have a data set made up of 34 indicators(variables) on 25 companies for 10 yrs. I need to cluster the companies according to their similarity to the variables & track their movement over 10 yrs. The variables are quantitative and are expressed as a %... How do I go about it with SPSS...
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    Help with clustering based on shopping category transaction freq

    hey there. Just wondering if anyone could lend their expertise on cluster analysis. Basically I am trying to see if I can find 5-10 customer segments based on shopping habits. I have a table (single customer view) of 10,000 randomly selected customers along with a column for each category...
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    How to find Optimal Clusters in Hierarchical Clustering (SPSS)

    Hi I am a linguistics researcher and trying to use cluster analysis in SPSS. After reading some tutorials I have found that determining number of clusters using hierarchical method is best before going to K-means method, for example. Now I am trying to find out cut-off point in output table of...
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    Cluster Analysis, Discriminant Analysis and Multinomial Logistic Regression - Help!

    Hi Everyone, I am having some serious problems with my analyses and was hoping someone might be able to help me out! I have a sample of 95 participants, who have been classified into three groups using a cluster analysis. I used hierarchical cluster analysis for this, and had 26 variables...
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    Clustering of categorial & quantitative data

    Hello, Struggling a bit here, hope I chose the right forum place. I am trying to cluster cells (1x1km) over a specific area. Each cell is composed of various habitats defined by a code. (Each habitat consists of 3 parameters, so a habitat code looks like e.g. 1-3-15. There are around 100...
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    Poor Cluster Quality in SPSS

    I'm conducting an analysis where I need to group my respondents to interest clusters. I have 34 interests and respondents could select multiple items. All these variables are binary, so I recoded all answers to 1/0. I'm aware that conducting hierarchical cluster analysis on binary data is not...
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    hclust function-cluster analysis-text/document-function creation

    Hi guys Im working on a text mining/clustering project and am trying to create a table which contains number of clusters as rows and 6 columns representing the following 6 metrics: max.diameter, min.separation, average.within,average.between,avg.silwidth,dunn. I need to create the tables for 3...
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    How to create graph showing PCA with groups from Cluster analysis?

    Yet again I have run into another wall. I am doing a project for uni and have came across a problem, I am looking to build a graph with PCA scores (2 components, so pca1 VS pca2). I also need to label the scores with what group they belong to, after having done a cluster analysis. Is this even...
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    Once completing a PCA on a dataset how do I go about adding the PCA scores to data?

    I am only new to STATA and was wondering once I have completed a PCA on my dataset, how do I see the scores on the dataset? (The data tab at the top beside the graphics tab) Also while I am here, after completing a cluster analysis and dendrogram how do I reduce it down to 6 groups (6 groups is...
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    Subspace clustering

    Hello, Could you recommed me book about subspace clustering?
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    SPSS- cross validation of cluster analysis

    In SPSS, I conducted Ward’s method of hierarchical cluster analysis based on squared Euclidean distances followed by k-means nonhierarchical clustering. I am now in the process of validating my final cluster solution by using a cross-validation of a random 50% of the sample. I was able to...
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    Distance measures in cluster analysis

    Hi, I conducted a k-means cluster analysis, which included each person's Euclidean distance from the centroid of his/her assigned cluster. Is there a way to calculate each person's distance from the centroid of a DIFFERENT cluster than his/her assigned cluster? In other words, if a person...