QUICK CLUSTER

QUICK CLUSTER is available in the Statistics Base option.

When the desired number of clusters is known, QUICK CLUSTER groups cases efficiently into clusters. It is not as flexible as CLUSTER, but it uses considerably less processing time and memory, especially when the number of cases is large.

QUICK CLUSTER {varlist}
              {ALL    }

 [/MISSING=[{LISTWISE**}] [INCLUDE]] 
            {PAIRWISE  }
            {DEFAULT   }

 [/FILE='savfile'|'dataset']

 [/INITIAL=(value list)]

 [/CRITERIA=[CLUSTER({2**})][NOINITIAL][MXITER({10**})] [CONVERGE({0**})]] 
                     {n  }                     {n   }             {n  }
 
 [/METHOD=[{KMEANS[(NOUPDATE)]**}] 
           {KMEANS(UPDATE)}     }
           {CLASSIFY            }  

 [/PRINT=[INITIAL**] [CLUSTER] [ID(varname)] [DISTANCE] [ANOVA] [NONE]]
 
 [/OUTFILE='savfile'|'dataset']

 [/SAVE=[CLUSTER[(varname)]] [DISTANCE[(varname)]]]

**Default if subcommand or keyword is omitted.

This command reads the active dataset and causes execution of any pending commands. See the topic Command Order for more information.

Syntax for the QUICK CLUSTER command can be generated from the K-Means Cluster Analysis dialog.

Example

QUICK CLUSTER V1 TO V4
  /CRITERIA=CLUSTER(4)
  /SAVE=CLUSTER(GROUP).