[Scilab-users] {EXT} Scilab 6's plot2d displays %nan on the horizontal line in the mid-range of vertical axis

[CRETE Denis]

Hello Christophe,
Thank you for trying also the function "plot" instead of "plot2d". 
On Scilab 6, on a Linux platform, I have the same result for both functions = they both plot a number of points equal to size(x,'*'), with guessed values for Yk when Yk is %nan... 
Code:
 X=1:5;
 Y=X.^2;
 Y(3)=%nan;
 plot(X',Y');
 plot2d(X',Y',style=3);
 // cf. figures; Parabole_nan.png is generated by "plot", and Parabole_2d_nan.png is generated by "plot2d".

I did not install Scilab 6 on Windows yet. When this is done, I'll give it a try.
Best regards
Denis
  
-----Message d'origine-----
De : users [mailto:users-bounces at lists.scilab.org] De la part de Dang Ngoc Chan, Christophe
Envoyé : mercredi 17 mai 2017 15:25
À : Users mailing list for Scilab
Objet : Re: [Scilab-users] {EXT} Scilab 6's plot2d displays %nan on the horizontal line in the mid-range of vertical axis

Hello Denis,

> De  CRETE Denis
> Envoyé : mercredi 17 mai 2017 14:20
>
> If %nan values are in the Y vector,
> plot2d behaves as if the following was performed before display:
> Y (isnan(Y))=(YM + Ym)/2

I'm not sure I understand what you're pointing out.

The following code works exactly as I expect:

----------

x = 1:5;

y=x.^2;

y(3)=%nan;

plot(x, y)

----------

i.e. the point at x=3 is simply missing, with a blank between x=2 and x=4.

--
Christophe Dang Ngoc Chan
Mechanical calculation engineer
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