[Scilab-users] Plotting curves against a set of points

[Jan Åge Langeland]

Have you tried plot() and replot()? You can do quite a bit with that by 
using LineSpec and GlobalProperty.  The example below includes plotting 
with primary and secondary Y axis:

Jan

clf;
t=1:100;
x=t.^2/100;
y=[4,12,32,72,95];
z=[500,1100,2100,4100,5000];
replot([t(1),ceil(t($));  0,  120]);
a=gca();  
b  =  newaxes();  
b.y_location  =  "right";  
b.filled  =  "off";  
b.axes_visible  =  ["off","on","on"];  
b.axes_bounds  =  a.axes_bounds;  
replot([t(1),ceil(t($));0  ,  6000]);
sca(a);
plot(t,x,'g',t(1:5)*20,y,'*r');
sca(b);
plot(t(1:5)*20,z,"*m")  ;






On 22.12.2015 11:37, Alasdair McAndrew wrote:
> Hello,
>
> I'm experimenting with fitting an ODE model (a non-linear system) to 
> some data; what I want to do is to plot the curves representing the 
> ODE numerical solutions against the initial (discrete) data points.  
> And I want to be able to specify the thickness and color of the 
> curves, as well as providing a legend to it.
>
> I can do the curves by carefully using gca, gce etc, and copying and 
> pasting examples from the documentation, but I don't yet know how to 
> plot the data points.
>
> For example, I have a time vector containing about 150 points, and an 
> array containing all the corresponding ODE values; thus:
>
> plot2d(t,x',style=[color("red"),color("green"),color("blue")]);
>
> However, I don't know how to include in this plot the 14 or 15 data 
> points.
>
> I find gca, gce somewhat tricky to use - is there an easier way: a 
> front end to plotting multiple curves and specifying the 
> characteristics of each curve?
>
> Many thanks,
> Alasdair
>
> -- 
> http://www.facebook.com/alasdair.mcandrew 
> <http://www.facebook.com/alasdair.mcandrew> 
> https://plus.google.com/+AlasdairMcAndrew/posts 
> <https://plus.google.com/+AlasdairMcAndrew/posts> 
> https://www.linkedin.com/pub/alasdair-mcandrew/a/178/108 
> <https://www.linkedin.com/pub/alasdair-mcandrew/a/178/108> 
> https://twitter.com/amca01 <https://twitter.com/amca01> 
> http://numbersandshapes.net <http://numbersandshapes.net>
>
>
> _______________________________________________
> users mailing list
> users at lists.scilab.org
> http://lists.scilab.org/mailman/listinfo/users

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.scilab.org/pipermail/users/attachments/20151222/2a32af83/attachment.htm>