ASPL Guide to Operations v 1.00
© 2024 by SetSphere.COM


4. 25
   yD gets the fuzzy-elements symmetric difference

 

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yD a1 a2 [a3 .. aN]       where a1 a2 [a3 .. aN] are set variables

yD`mtm~ a1 a2 [a3 .. aN]

yD/mtm~ a1 a2 [a3 .. aN]

yD

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 partition stack

tsetop  asetoid  2**  notcommu        ins:H_H_H  ous:H_H_AH

●  Operator yD gets the fuzzy-elements symmetric difference

Use the operator yD or its equivalent y*D to get the symmetric difference of datasets based on fuzzy matching of their elements.

 

yD EXAMPLE
In this example we will compare the files in two directories using the symmetric difference by fuzzy matching their file names (or their elements).

 

yD OPERATION

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

①  aspl> yD a1 a2
    (show the symmetric difference of the datasets in a1 and a2 by fuzzy matching their elements)

The yD is the same as y*D

②  aspl> y*D a1 a2
    (show the symmetric difference of the datasets in a1 and a2 by fuzzy matching their elements)

③  aspl> yD`mtm~ a1 a2
    (show the symmetric difference of the datasets in a1 and a2 by fuzzy matching their elements whose mtimes are different)

 

● Tickable Predicates for yD

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

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