curve fitting : Error computing Delaunay triangulation. Please try again with different data.

dear all

i have data point like below :

s =
         0    0.0200    0.0400    0.0600    0.0800
y =
     0     0     0     0     0
h =
   1.0e-03 *
         0   -0.0578   -0.2061   -0.4013   -0.6146

and i want to fite smooth curve and not a surface from these data for example using interpolant and cubic method if possible or smth els

when i use matlab tool box i got this error :

Error computing Delaunay triangulation. Please try again with different data.

and i really apreciated if some one can help me to do this in cod and not matlab toolbox and how can Restrict the data range from 0 to my last point mean :[0.08 0 -0.6146]

[shahin hashemi]

and i should mention that i want this curve fitting in 3 dimension

Answer 1

[Walter Roberson]

Fit in 2d instead of 3d. Your y is constant, which causes problems in computing the surface.

[shahin hashemi]

thank you for your attention mr walter but it is just one of my data points and others y arent zero and i need line and not a surface and i dont want to use curve fitting toolbox and i need to cod

i really appreciated if you could help me

[shahin hashemi]

i mean if here zero y is problem you can imagine that my others y data point arent constant

[Walter Roberson]

What sequence of steps are you following that leads to this message?

Can you attach your data as a .mat ?