interp1 and spline error

hi

i want to plot following series of values with respect to m which is (0:0.1:1). by connecting them in a sequence where n=1:11 K(n,:)=[m angle(n,1)]

30.7718
   30.1766
   27.9563
   29.3494
   30.5871
   31.0456
   47.2866
   29.2492
   27.7123
   30.8852
   33.4237
i have written the following program but gives no desired results

t = 0:.1:m;
x = K(:,1);
y = K(:,2)
tq = 1:0.01:m;
x1q = interp1(t,x,tq,'spline');
y1q = interp1(t,y,tq,'spline');
plot(x1q,y1q)
axis([0 1 0 100])
grid

kindly can any one rectify the error, thanks

[Image Analyst]

What's that list of numbers for?

Answer 1

[Thorsten]

 K = [
           0   34.4707
      0.1000   29.2219
      0.2000   33.9285
      0.3000   30.2549
      0.4000   27.5845
      0.5000   30.1280
      0.6000   35.3399
      0.7000   27.2709
      0.8000   30.4285
      0.9000   41.8381
      1.0000   31.5142];

 x = K(:,1);
 y = K(:,2);

 xfine = linspace(x(1), x(end), 100);
 yin = interp1(x, y, xfine, 'spline');

 plot(x, y, '-o')
 hold on
 plot(xfine, yin, 'r-')

Answer 2

[Torsten]

My guess is that you mean

tq = 0:0.01:m;

instead of

tq = 1:0.01:m;

Best wishes

Torsten.

[Mudasir Ahmed]

sir it gives error

Error in interp1 (line 191) F = griddedInterpolant(X,V,method);