[Scilab-users] HELP TOOLBOX RNA

[Fernando Fernandes Vieira]

Dear colleagues
I am having problem with the RNA toolbox, when I use the logsig activation
function, I get the following messages.
I need help
Thanks in advance.



at line17 of function%s_pow   ( C:\Program
Files\scilab-6.0.1\modules\ast\macros\%s_pow.sci line 29 )
at line 3 of function%s_p_s   ( C:\Program
Files\scilab-6.0.1\modules\ast\macros\%s_p_s.sci line 15 )
in builtin   ann_logsig_activ (
C:\Users\FERNANDO\AppData\Roaming\Scilab\scilab-6.0.1\atoms\x64\neuralnetwork\2.0\macros\computation\ann_logsig_activ.sci
line 0 )
at line 1 of executed string
at line49 of functionevstr( C:\Program
Files\scilab-6.0.1\modules\string\macros\evstr.sci line 64 )
at line   104 of functionann_FFBP_lm  (
C:\Users\FERNANDO\AppData\Roaming\Scilab\scilab-6.0.1\atoms\x64\neuralnetwork\2.0\macros\network\ann_FFBP_lm.sci
line 104 )
at line28 of executed file   E:\CODIGO\REDELMCASO1.sce

%s_pow: Tamanho incorreto para o argumento de entrada #2: esperava-se uma
matriz quadrada.

===



Att..
___
  * FERNANDO FERNANDES VIEIRA*
   Departamento de Engenharia Sanitária e Ambiental - DESA
   Centro de Ciências e Tecnologia - CCT
   Universidade Estadual da Paraíba - UEPB
   Tel: (83) 3315- (DESA) - (83) 98852-1461 (Pessoal)
   e-mail: ferna...@uepb.edu.br (fernanvie...@gmail.com)
   Campina Grande - PB - Brasil
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Re: [Scilab-users] pixel level programming

[Jean-Philippe Grivet]

Thank you ¨M: I'll try that.

JP Grivet


Le 17/04/2018 à 17:52, P M a écrit :

Hi Grivet,

weather...yes it is

how...if you know:

- the pixel coordinate of the pixel you want to manipulate and
- how to work with colormap ...

you should be able to manipulate a single pixel

For a start I suggest you understand how Matplot() works.
This is used in IPD to draw the image, when the ShowImage() command is 
used.


simple Example:

img = ones(100,100) * 256;    // white image with sioze of 100 x 
100 px

ShowImage(img, "white image");
img(50,50) = 0; // set a single pixel to zero 
(= black)

ShowImage(img, "white image with one single black pixel");

Hth,
Philipp




2018-04-16 12:53 GMT+02:00 Jean-Philippe Grivet 
>:


Hello,

I would like to know whether and how it is possible to program
individual pixels within a Scilab figure ? I have in mind a simple
application: a disk moves inside a bounded region and changes the
colour of every pixel it sweeps over.  Thanks for your hints.

JP Grivet



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