ASPL Manual v 1.00
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4. 7
   dP gets the subgroups partition

 

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

dP`mtm~ a1 [a2 .. aN]

dP/mtm~ a1 [a2 .. aN]

dP

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 stack

psetop  psetoid  1**  commu        ins:H_H_H  ous:H_H_H_H

●  Operator dP gets the subgroups partition

Use the operator dP to get the subgroups partition of one or many set variables. The partitions are based on the group label or labels found in each set variable.

 

dP EXAMPLE
The following example shows how to display the subgroups partition of three directories. We start ASPL loading the sample workspace WS1 then we issue the partition operators.

 

dP OPERATION

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

①  aspl> fP a1 a2 a3
    (display the elements (or filenames) partition of a1 a2 a3)

②  aspl> dP a1 a2 a3
    (display the subgroups (or subdirectories) partition of a1 a2 a3)

③  aspl> gP a1 a2 a3
    (display the subdirectories and filenames partition of a1 a2 a3)

④  aspl> gP`c~ a1 a2 a3
    (display the subdirectories and filenames partition of a1 a2 a3 such that checksums are unequal)

 

● Tickable Predicates for dP

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

       a yellow note
dP`_  gets the subgroups partition 
dP`c=  gets the subgroups partition such that they have the same checksum 
dP`c~  gets the subgroups partition such that they have different checksums 
dP`c~~  gets the subgroups partition such that they have all over different checksums 
dP`h=  gets the subgroups partition such that they have the same entropy 
dP`h~  gets the subgroups partition such that they have different entropies 
dP`h~~  gets the subgroups partition such that they have all over different entropies 
dP`mtm=  gets the subgroups partition such that they have the same make time 
dP`mtm~  gets the subgroups partition such that they have different make times 
dP`mtm~~  gets the subgroups partition such that they have all over different make times 
dP`mtm<  gets the subgroups partition such that they have a prior make time 
dP`mtm<=  gets the subgroups partition such that they have prior or same make time 
dP`mtm>  gets the subgroups partition such that they have more recent make time 
dP`mtm>=  gets the subgroups partition such that they have more recent or same make time 
dP`ks=  gets the subgroups partition such that they have the same ksum 
dP`ks~  gets the subgroups partition such that they have different ksums 
dP`ks~~  gets the subgroups partition such that they have all over different ksums 
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