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CL HE - CLassification - Hierarchical clustering, create docfiles

(08/19/96)

PURPOSE

Creates selection docfiles for a given threshold.

SEE ALSO

CL CLA [CLassification - Clusters]
CL HC [CLassification - Hierarchical clustering]
CL HD [CLassification - Hierarchical clustering, calculate classes]
CL KM [CLassification - K Means clustering]

USAGE

.OPERATION: CL HE

.THRESHOLD (0-1): 0.2

.DENDOGRAM DOCUMENT FILE: DND102
[Enter the document file name containing information about classification tree (produced by CL HC).]

.ENTER TEMPLATE FOR SELECTION DOC FILE: GRP***
[Enter the template for selection document file names which will contain numbers of objects for every class. Thus, for example, selection document file GRP012 will contain number of images belonging to class 12 at a threshold 0.2.]

NOTES

  1. This command uses output from CL HC and works only in conjunction with hierarchical clustering.

  2. To calculate averages for the classes, use command AS DC and selection doc files.

  3. This command implements the following batch program:
     
                    ; HCLASS - retrieving of groups on a given level 
                    X51=0.42 
                    ; # OF OBJECTS IN A GROUP 
                    X41=0.0 
                    ; # OF GROUPS 
                    X42=1.0 
                    X55=1.0 
                    UD IC,X55,X31,X32 
                    HCLAS2 
                    X41=X41+1.0 
                    SD X41,X31 
                    GRPX42 
                    DO LB1 I=2,838 
                    UD IC,X0,X21,X22 
                    HCLAS2 
                    IF(X32.LT.X51) GOTO LB2 
                    SD X42,X41 
                    CLASD 
                    X42=X42+1.0 
                    X41=1.0 
                    SD X41,X21 
                    GRPX42 
                    IF(X41.EQ.1.0) GOTO LB1 
                    LB2 
                    X41=X41+1.0 
                    SD X41,X21 
                    GRPX42 
                    X32=X22 
                    LB1 
                    SD X42,X41 
                    CLASD 
                    EN 
    

  4. Implemented by P. Penczek.

SUBROUTINES

HELS

CALLER

UTIL1

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