how to cluster a data set how to cluster time series cluster time series what is cluster analysis in spss how to cluster time series in spss dummies clustering time series in spss how to cluster time series spss cluster analysis in spss how to cluster time series how do you cluster time series how to cluster power usage how to cluster data how to cluster data how to cluster time series how to cluster time series which time period do companies use the most power can you cluster company data using spss cluster analysis what kind what is time series clustering how to cluster time series