Tally, rho and idioms
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Tally, rho and idioms
Hello,
I like the tally, but because of this:
cmpx '0≠⊃⍴v' '0≠≢v '
0≠⊃⍴v → 7.1E¯8 | 0% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
0≠≢v → 1.4E¯7 |+98%⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
..it's unconfortable to use it. Is there any chance that also the expression with the tally could become an idiom?
Thanks.
Guido
I like the tally, but because of this:
cmpx '0≠⊃⍴v' '0≠≢v '
0≠⊃⍴v → 7.1E¯8 | 0% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
0≠≢v → 1.4E¯7 |+98%⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
..it's unconfortable to use it. Is there any chance that also the expression with the tally could become an idiom?
Thanks.
Guido
- gumont68
- Posts: 4
- Joined: Fri Oct 19, 2018 10:22 am
Re: Tally, rho and idioms
Hmm.. which version are you using?
I asssume that the v in your example refers to a vector, thus the quick testing in my (Dyalog 17.0/Unicode/32-bit/Win 7/[]ML 3) gives
In other words
-wm
I asssume that the v in your example refers to a vector, thus the quick testing in my (Dyalog 17.0/Unicode/32-bit/Win 7/[]ML 3) gives
v←⍬
]runtime "~0∊⍴v" "0≠≢v" "0≠↑⍴v" -compare
~0∊⍴v → 4.5E¯8 | 0% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
0≠≢v → 5.9E¯8 | +33% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
0≠↑⍴v → 8.2E¯8 | +83% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
v←⍳123
]runtime "~0∊⍴v" "0≠≢v" "0≠↑⍴v" -compare
~0∊⍴v → 4.1E¯8 | 0% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
0≠≢v → 5.2E¯8 | +27% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
0≠↑⍴v → 9.3E¯8 | +126% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
In other words
0∊⍴is my preferred idiom to use here - but tally does a quite nice job, too.
-wm
- Veli-Matti
- Posts: 93
- Joined: Sat Nov 28, 2009 3:12 pm
Re: Tally, rho and idioms
Hi Veli-Matte. Happy to hear from you. Thanks for your answer.
v←⍳20⋄cmpx '~0∊⍴vvv' '0≠≢v' '0≠⊃⍴v'
~0∊⍴vvv → 8.1E¯8 | 0% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
0≠≢v → 2.1E¯7 | +157% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
0≠⊃⍴v → 8.5E¯8 | +4% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
Your favourite expression, I can guess, is and idiom just as 0≠⊃⍴ is.
I like most ≠≢v only because is one char less.
But i see my favourite expression it is not a idiom.. so...
The weird thing is that in my version the difference is bigger, but it can depend on some other computer magic.
Apl 17 64 Unicode. cmpx is the one from the dfns library.
PS. Too bad that the tally comes out with a bit weird typo, here..
Guido
v←⍳20⋄cmpx '~0∊⍴vvv' '0≠≢v' '0≠⊃⍴v'
~0∊⍴vvv → 8.1E¯8 | 0% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
0≠≢v → 2.1E¯7 | +157% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
0≠⊃⍴v → 8.5E¯8 | +4% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
Your favourite expression, I can guess, is and idiom just as 0≠⊃⍴ is.
I like most ≠≢v only because is one char less.
But i see my favourite expression it is not a idiom.. so...
The weird thing is that in my version the difference is bigger, but it can depend on some other computer magic.
Apl 17 64 Unicode. cmpx is the one from the dfns library.
PS. Too bad that the tally comes out with a bit weird typo, here..
Guido
- gumont68
- Posts: 4
- Joined: Fri Oct 19, 2018 10:22 am
Re: Tally, rho and idioms
Oh my, there's always something new to learn. I am an old APL2 bigot, and that's why the results were different (the ]runtime user command is handy because I don't have to copy the function in the workspace, but AFAIK the underlying code is the same):
Seemingly I have to reread the idiom list more carefully!
-wm
v←⍳12 ⋄ ⎕ML←1
]runtime "~0∊⍴v" "0≠≢v" "0≠⊃⍴v" -compare
~0∊⍴v → 6.7E¯8 | 0% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
0≠≢v → 1.5E¯7 | +116% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
0≠⊃⍴v → 7.4E¯8 | +11% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
⎕ML←3
]runtime "~0∊⍴v" "0≠≢v" "0≠↑⍴v" -compare
~0∊⍴v → 7.1E¯8 | 0% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
0≠≢v → 1.5E¯7 | +111% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
0≠↑⍴v → 2.0E¯7 | +184% ⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕⎕
Seemingly I have to reread the idiom list more carefully!
-wm
- Veli-Matti
- Posts: 93
- Joined: Sat Nov 28, 2009 3:12 pm
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