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Message started by cheap_salary on Sep 14^th, 2015, 5:41am

Title: Sorting list numerically in Cadence SKILL Language
Post by cheap_salary on Sep 14^th, 2015, 5:41am

a = '(11 9 11 8 7 9 12 1 0 -5 11 6 7)

I want to sort above list, a and then generate new list, b.

b = '(-5 0 1 6 7 7 8 9 9 11 11 11 12)

And I want to remove duplicate elements and then generate new list, c

c = '(-5 0 1 6 7 8 9 11 12)

How can I do these tasks elegantly in Cadence SKILL Language ?

"sort(a, nil)" is not valid.

I can do these tasks for list very easily in Microsoft .NET environment by invoking sort method and association list, e.g. "hash table"or "dictionary".

Title: Re: Sorting list numerically in Cadence SKILL Language
Post by boe on Sep 15^th, 2015, 4:27am

Cheap_salary,
cheap_salary wrote on Sep 14^th, 2015, 5:41am:

"sort(a, nil)" is not valid.

I do not understand what your problem with sort is. Properly used it works just fine:

Code:

a = '(11 9 11 8 7 9 12 1 0 -5 11 6 7)
(11 9 11 8 7
9 12 1 0 -5
11 6 7
)
b=sort(copy(a), 'lessp)
(-5 0 1 6 7
7 8 9 9 11
11 11 12
)

- B O E

Title: Re: Sorting list numerically in Cadence SKILL Language
Post by cheap_salary on Sep 15^th, 2015, 6:41am

boe wrote on Sep 15^th, 2015, 4:27am:

b=sort(copy(a), 'lessp)
(-5 0 1 6 7
7 8 9 9 11
11 11 12
)

Thanks for replying.
If I want to remove duplicate elements, how can I do it ?

I created my own awkward custom function like following.
I can do my favorite task with this custom function, but not cool.

Code:

procedure( list_sort(l_list,
@optional (my_mode 0), (rm_duplicate 0)
); list_sort
prog( (i, k, ii, jj, n, p, my_value)
n = length(l_list)

declare(p[n])
for(i, 0, n-1
p[i] = nth(i, l_list)
); for

for(ii, 0, n-2
my_value = p[ii]
k = ii
for(jj, ii+1, n-1
prog( ()
if(my_mode == 0 then
when( my_value < p[jj], return() ) ; ascend
else
when( my_value > p[jj], return() ) ; descend
); if
my_value = p[jj]
k = jj
); prog
); for
p[k] = p[ii]
p[ii] = my_value
); for

my_value = p[0]
l_list = list(my_value)
for(i, 1, n-1
if(rm_duplicate != 0 then
when(p[i] != my_value
my_value = p[i]
l_list = append1(l_list, my_value)
); when
else
l_list = append1(l_list, p[i])
); if
); for
return(l_list)
); prog
); procedure

\i list_sort('(2 11 11 11 10 10 9 9 4 0 -1), 0)
\t (-1 0 2 4 9
\t 9 10 10 11 11
\t 11
\t )
\p >
\i list_sort('(2 11 11 11 10 10 9 9 4 0 -1), 0, 1)
\t (-1 0 2 4 9
\t 10 11
\t )
\p >
\i list_sort('(2 11 11 11 10 10 9 9 4 0 -1), 1)
\t (11 11 11 10 10
\t 9 9 4 2 0
\t -1
\t )
\p >
\i list_sort('(2 11 11 11 10 10 9 9 4 0 -1), 1, 1)
\t (11 10 9 4 2
\t 0 -1
\t )

I can do same tasks very easily with MATLAB.

Title: Re: Sorting list numerically in Cadence SKILL Language
Post by boe on Sep 16^th, 2015, 9:52am

cheap_salary wrote on Sep 15^th, 2015, 6:41am:

...
I can do same tasks very easily with MATLAB.

Congratulations. However, it just proves that you are more proficient in MATLAB than in SKILL.
- B O E

Title: Re: Sorting list numerically in Cadence SKILL Language
Post by cheap_salary on Sep 16^th, 2015, 11:08am

I've translated some MATLAB scripts to SKILL and Visual-C#.
So I created many primitive custom functions with SKILL.

For example, I've translated many functions of Schreier's delsig Toolbox to SKILL.

The following is a Porting Project to Python of delsig Toobox.
https://github.com/ggventurini/python-deltasigma

Title: Re: Sorting list numerically in Cadence SKILL Language
Post by boe on Sep 17^th, 2015, 8:50am

Cheap_salary,
Cadence documentation is your friend.
- B O E

Title: Re: Sorting list numerically in Cadence SKILL Language
Post by cheap_salary on Sep 17^th, 2015, 9:29am

boe wrote on Sep 17^th, 2015, 8:50am:

Cheap_salary,
Cadence documentation is your friend.
- B O E

Rather, Text books on CLisp and Emacs Lisp are very useful and helpful than Cadence documentation.

Title: Re: Sorting list numerically in Cadence SKILL Language
Post by sheldon on Sep 17^th, 2015, 9:07pm

There are built in functions to extract unique members
from a list, if you look in the documentation.