Re: [Scilab-users] Generating a boolean vector or matrix

2019-09-05 Thread Stéphane Mottelet
Le 05/09/2019 à 12:44, Antoine Monmayrant a écrit : Le 05/09/2019 à 11:28, Lamy Alain a écrit : What I didn’t like at first is to use “ones” for a boolean type. That was also my first reaction. When comparing the learning curve and overall ease of use of scilab with other options (matlab,

Re: [Scilab-users] Generating a boolean vector or matrix

2019-09-05 Thread Antoine Monmayrant
Le 05/09/2019 à 11:28, Lamy Alain a écrit : What I didn’t like at first is to use “ones” for a boolean type. That was also my first reaction. When comparing the learning curve and overall ease of use of scilab with other options (matlab, julia, python), I always come to the conclusion that

Re: [Scilab-users] Generating a boolean vector or matrix

2019-09-05 Thread Lamy Alain
What I didn’t like at first is to use “ones” for a boolean type. (although I know the 2 types are almost interchangeable in Scilab). The existing function bool2s changes %t into 1. So thinking about it a little more, OK for the proposed extensions of “ones” and “zeros”. Alain ___

Re: [Scilab-users] Generating a boolean vector or matrix

2019-09-05 Thread CHEZE David 227480
+1 interested in this patch De : users De la part de Stéphane Mottelet Envoyé : jeudi 5 septembre 2019 08:46 À : users@lists.scilab.org Objet : Re: [Scilab-users] Generating a boolean vector or matrix Le 04/09/2019 à 20:19, Federico Miyara a écrit : Stéphane, Questions: 1) Why does it work?

Re: [Scilab-users] Generating a boolean vector or matrix

2019-09-05 Thread stephane . mottelet
When I say ineficient, I mean that kind of behavior: --> tic;repmat(uint8(0),1,1);toc  ans  =    1.622535 compared to proposed implementation: --> tic;a=zeros(1,1,"uint8");toc  ans  =    0.063472 S. Quoting Stéphane Mottelet : Le 05/09/2019 à 08:55, Lamy Alain a écrit :

Re: [Scilab-users] Generating a boolean vector or matrix

2019-09-05 Thread Federico Miyara
On 05/09/2019 04:13, Stéphane Mottelet wrote: Le 05/09/2019 à 08:55, Lamy Alain a écrit : Hi, I’m not convinced the new syntax: ones(n, m, “boolean”) is a good idea or is necessary because it makes “integer” (“constant”) and “boolean” 2 identical types. Sorry Alain can you explain it f

Re: [Scilab-users] Generating a boolean vector or matrix

2019-09-05 Thread Federico Miyara
Christophe, Thanks! Two more questions (for anybody reading and willing to reply): 1) Is there an exclusive or function? I couldn't find it, a search leads to the XOR mode of combining graphic pixels. It would be most useful since it is one of the operations in the Galois field GF(2). Curren

Re: [Scilab-users] Generating a boolean vector or matrix

2019-09-05 Thread Stéphane Mottelet
Le 05/09/2019 à 08:55, Lamy Alain a écrit : Hi, I’m not convinced the new syntax: ones(n, m, “boolean”) is a good idea or is necessary because it makes “integer” (“constant”) and “boolean” 2 identical types. Sorry Alain can you explain it further ? There is a simple way to do the same :

Re: [Scilab-users] Generating a boolean vector or matrix

2019-09-05 Thread Lamy Alain
Hi, I’m not convinced the new syntax: ones(n, m, “boolean”) is a good idea or is necessary because it makes “integer” (“constant”) and “boolean” 2 identical types. There is a simple way to do the same : repmat(%t, n, m) Alain ___ users mailing list u