ASPL Manual v 1.00
© 2024 by SetSphere.COM


9. 4
   yU gets the fuzzy-elements union

 

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yU a1 [a2 .. aN]       where a1 [a2 .. aN] are set variables

yU`mtm~ a1 [a2 .. aN]

yU/mtm~ a1 [a2 .. aN]

yU

When specified by itself then the operation is performed on the object on top of the stack and the one that is one below it, then the result is pushed on the unswer stack

tsetop  asetoid  1**  commu        ins:H_H_H  ous:H_H_AH

●  Operator yU gets the fuzzy-elements union

Use the operator yU or its equivalent y*U to get the union of datasets based on their elements (that are fuzzy matched). The operator yU is equivalent to y*U. Refer to <<>>.

 

yU EXAMPLE
The following example shows how to get the fuzzy union between two datasets representing files in directories on the UNIX system.

 

yU OPERATION

# aspl WS1
    (start ASPL loading the sample workspace WS1 )

①  aspl> yU a2 a3
    (print the fuzzy union of the elements in a2 and a3 )

②  aspl> fuzzy
    (display the fuzzy degree)

③  aspl> fuzzy 2
    (set fuzzy degree to 2)

④  aspl> yU a2 a3
    (print the fuzzy union of the elements in a2 and a3 )

⑤  aspl> uns
    (print the partition stack)

 

● Tickable Predicates for yU

This yU is tickable with predicates that are shown in the following table:

       a yellow note
yU`_  gets the fuzzy-elements union 
yU`c=  gets the fuzzy-elements union such that they have the same checksum 
yU`c~  gets the fuzzy-elements union such that they have different checksums 
yU`c~~  gets the fuzzy-elements union such that they have all over different checksums 
yU`h=  gets the fuzzy-elements union such that they have the same entropy 
yU`h~  gets the fuzzy-elements union such that they have different entropies 
yU`h~~  gets the fuzzy-elements union such that they have all over different entropies 
yU`mtm=  gets the fuzzy-elements union such that they have the same make time 
yU`mtm~  gets the fuzzy-elements union such that they have different make times 
yU`mtm~~  gets the fuzzy-elements union such that they have all over different make times 
yU`ks=  gets the fuzzy-elements union such that they have the same ksum 
yU`ks~  gets the fuzzy-elements union such that they have different ksums 
yU`ks~~  gets the fuzzy-elements union such that they have all over different ksums 
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