interpolating different row sizes

Hello,

I have a problem, I want to display a height 'H' over a period of time 'T' but the vectors don't have the same length, I thought I could use the 'interp1' function like this:

for j= 1:1:length(T)    
  H1(j) = interp1(T,H,T(j));    
end

the T vector is 229 units long and the H vector is 4091.

but I get this error: "Error using griddedInterpolant The grid vectors do not define a grid of points that match the given values."

I don't know which function to use.

[Walter Roberson]

For any particular entry H(K), what time is it associated with? Is T a subset of the times implied over H and you want to select that subset? Or is the total time of T implied to be the same as the total time of H and you want to know the H values at the particular times listed in T? Or...?

Answer 1

[Image Analyst]

Is T uniformly spaced? If so, just try this

Tnew = linspace(T(1), T(end), length(H));
plot(Tnew, H, 'b-');

[Evan]

it is uniformly space, but I forgot o tell thatI have another vector the same length as T but not uniformly spaced which I have to plot in the same figure

[Image Analyst]

What do you have that tells what the "x" or "t" value is at those samples? If you have T at 1,11,21,31 then that's fine. But if you have S values sampled at 1,4,15,19,45,60, etc. (essentially at non-uniform spacing) then how will we know that S(1) was at 1, and S(2) was at 4, etc.?