fun(-)ction for drawing random numbers 1..6
|
View:
New views
3 Messages
—
Rating Filter:
Alert me
|
 |
fun(-)ction for drawing random numbers 1..6
by Jaroslav Hajek-2
::
Rate this Message:
hi all,
if you ever needed to draw n random numbers from 1:6 in your script, this function is for you. OK, ceil (6*rand (1, n)) can do it as well, but this one is cooler. Terminal with ansi-escapes required. enjoy -- RNDr. Jaroslav Hajek computing expert & GNU Octave developer Aeronautical Research and Test Institute (VZLU) Prague, Czech Republic url: www.highegg.matfyz.cz [rolldices.m] ## Copyright (C) 2009 Jaroslav Hajek <highegg@...> ## ## This program is free software; you can redistribute it and/or modify ## it under the terms of the GNU General Public License as published by ## the Free Software Foundation; either version 3 of the License, or ## (at your option) any later version. ## ## This program is distributed in the hope that it will be useful, ## but WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ## GNU General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with this program; see the file COPYING. If not, see ## <http://www.gnu.org/licenses/>. ## -*- texinfo -*- ## @deftypefn{Function File} rolldices (n) ## @deftypefnx{Function File} rolldices (n, nrep, delay) ## Returns n random numbers from the 1:6 range, displaying a visual selection ## effect. nrep sets the number of rolls, delay specifies time between successive ## rolls in seconds. Default is nrep = 25 and delay = 0.1. ## Requires a terminal with ANSI escape sequences enabled. ## @end deftypefn function numbers = rolldices (n, nrep = 25, delay = .1) if (nargin != 1) print_usage (); endif persistent matrices = getmatrices (); screen_cols = getenv ("COLUMNS"); if (isempty (screen_cols)) screen_cols = 80; else screen_cols = str2num (screen_cols); endif dices_per_row = floor ((screen_cols-1) / 7); oldpso = page_screen_output (0); numbers = []; unwind_protect while (n > 0) m = min (n, dices_per_row); for i = 1:nrep if (i > 1) puts (char ([27, 91, 51, 70])); sleep (delay); endif nums = ceil (6 * rand (1, m)); disp (matrices(:,:,nums)(:,:)); endfor numbers = [numbers, nums]; n -= m; puts ("\n"); endwhile unwind_protect_cleanup page_screen_output (oldpso); end_unwind_protect endfunction function matrices = getmatrices () lbrk = [27, 91, 55, 109](ones (1, 3), :); rbrk = [27, 91, 50, 55, 109](ones (1, 3), :); spcs = [32, 32; 32, 32; 32, 32]; dchrs = reshape( [" @ @ @ @@ @@ @"; " @ @ @ @ @"; " @ @@ @@ @@ @"], [3, 5, 6]); matrices = mat2cell (dchrs, 3, 5, ones (1, 6)); matrices = cellfun (@(mat) [spcs, lbrk, mat, rbrk], matrices, "UniformOutput", false); matrices = cat (3, matrices{:}); endfunction ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________ Octave-dev mailing list Octave-dev@... https://lists.sourceforge.net/lists/listinfo/octave-dev |
|
|
Re: fun(-)ction for drawing random numbers 1..6
by Søren Hauberg
::
Rate this Message:
lør, 26 09 2009 kl. 19:24 +0200, skrev Jaroslav Hajek:
> if you ever needed to draw n random numbers from 1:6 in your script, > this function is for you. > OK, ceil (6*rand (1, n)) can do it as well, but this one is cooler. > Terminal with ansi-escapes required. Ha ha! This is soo cool. It might be a bit slow for large scale Markov Chain Monte Carlo studies, though :-) But I can easily imagine using this when doing demos during lectures. Yet another function that could go into the non-existing 'fun' package. Søren ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________ Octave-dev mailing list Octave-dev@... https://lists.sourceforge.net/lists/listinfo/octave-dev |
|
|
Re: fun(-)ction for drawing random numbers 1..6
by Daniel J Sebald
::
Rate this Message:
Wasn't there a discussion recently about a "games" package in response to a script someone sent in? This would make two such scripts, enough for a package.
Dan Jaroslav Hajek wrote: > hi all, > > if you ever needed to draw n random numbers from 1:6 in your script, > this function is for you. > OK, ceil (6*rand (1, n)) can do it as well, but this one is cooler. > Terminal with ansi-escapes required. > > enjoy > > > > ------------------------------------------------------------------------ > > ## Copyright (C) 2009 Jaroslav Hajek <highegg@...> > ## > ## This program is free software; you can redistribute it and/or modify > ## it under the terms of the GNU General Public License as published by > ## the Free Software Foundation; either version 3 of the License, or > ## (at your option) any later version. > ## > ## This program is distributed in the hope that it will be useful, > ## but WITHOUT ANY WARRANTY; without even the implied warranty of > ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > ## GNU General Public License for more details. > ## > ## You should have received a copy of the GNU General Public License > ## along with this program; see the file COPYING. If not, see > ## <http://www.gnu.org/licenses/>. > > ## -*- texinfo -*- > ## @deftypefn{Function File} rolldices (n) > ## @deftypefnx{Function File} rolldices (n, nrep, delay) > ## Returns n random numbers from the 1:6 range, displaying a visual selection > ## effect. nrep sets the number of rolls, delay specifies time between successive > ## rolls in seconds. Default is nrep = 25 and delay = 0.1. > ## Requires a terminal with ANSI escape sequences enabled. > ## @end deftypefn > > function numbers = rolldices (n, nrep = 25, delay = .1) > if (nargin != 1) > print_usage (); > endif > > persistent matrices = getmatrices (); > > screen_cols = getenv ("COLUMNS"); > if (isempty (screen_cols)) > screen_cols = 80; > else > screen_cols = str2num (screen_cols); > endif > > dices_per_row = floor ((screen_cols-1) / 7); > > oldpso = page_screen_output (0); > > numbers = []; > > unwind_protect > while (n > 0) > m = min (n, dices_per_row); > for i = 1:nrep > if (i > 1) > puts (char ([27, 91, 51, 70])); > sleep (delay); > endif > nums = ceil (6 * rand (1, m)); > disp (matrices(:,:,nums)(:,:)); > endfor > numbers = [numbers, nums]; > n -= m; > puts ("\n"); > endwhile > unwind_protect_cleanup > page_screen_output (oldpso); > end_unwind_protect > > endfunction > > function matrices = getmatrices () > lbrk = [27, 91, 55, 109](ones (1, 3), :); > rbrk = [27, 91, 50, 55, 109](ones (1, 3), :); > spcs = [32, 32; 32, 32; 32, 32]; > dchrs = reshape( > [" @ @ @ @@ @@ @"; > " @ @ @ @ @"; > " @ @@ @@ @@ @"], [3, 5, 6]); > > matrices = mat2cell (dchrs, 3, 5, ones (1, 6)); > matrices = cellfun (@(mat) [spcs, lbrk, mat, rbrk], matrices, "UniformOutput", false); > matrices = cat (3, matrices{:}); > endfunction > > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------------ > Come build with us! The BlackBerry® Developer Conference in SF, CA > is the only developer event you need to attend this year. Jumpstart your > developing skills, take BlackBerry mobile applications to market and stay > ahead of the curve. Join us from November 9-12, 2009. Register now! > http://p.sf.net/sfu/devconf > > > ------------------------------------------------------------------------ > > _______________________________________________ > Octave-dev mailing list > Octave-dev@... > https://lists.sourceforge.net/lists/listinfo/octave-dev -- Dan Sebald email: daniel(DOT)sebald(AT)ieee(DOT)org URL: http://www(DOT)dansebald(DOT)com ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________ Octave-dev mailing list Octave-dev@... https://lists.sourceforge.net/lists/listinfo/octave-dev |
| Free embeddable forum powered by Nabble | Forum Help |
