[R] Decision tree model using rpart ( classification

[aajit75]

Hi Experts,

I am new to R, using decision tree model for getting segmentation rules.
A) Using behavioural data (attributes defining customer behaviour, ( example
balances, number of accounts etc.)
1. Clustering:  Cluster behavioural data to suitable number of clusters
2. Decision Tree: Using rpart classification tree for generating rules for
segmentation using cluster number(cluster id) as target variable and
variables from behavioural data as input variables.

B) Using profile data (customers  demographic data )
1. Clustering:  Cluster profile data to suitable number of clusters
2. Decision Tree: Using rpart classification tree for generating rules for
segmentation using cluster number(cluster id) as target variable and
variables from profile data as input variables.

C) Using profile data (customers  demographic data ) and deciles created
based on behaviour
1. Deciles:  Deciles customers to 10 groups based on some behavioural data
2. Decision Tree: Using rpart classification for generating rules for
segmentation using Deciles  as target variable and variables from profile
data as input variables.

In first two cases A and B decision tree model using rpart finish the
execution in a minute or two, But in third case (C) it continues to run for
infinite amount of time( monitored and running even after 14 hours).
 fit <- rpart(decile ~., method="class",    data=dtm_ip)
Is there anything wrong with my approach?

Thanks for the help in advance.
-Ajit


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