How to interpolate data points

1 次查看（过去 30 天）
Ollie
Ollie 2015-10-12
评论： Geoff Hayes 2015-10-12
I'm trying to answer the following question:
This is the code I have so far:
function [f table] = interpol(x, xdata, ydata)
N = length(xdata);
A = zeros(N,N+1);
A(:,1) = xdata;
A(:,2) = ydata;
for col = 3:N+1
for row = 1:N-1 -(col-3)
A(row,col) = (A(row+1,2+col-3)-A(row,2+col-3))/(A(row+1+col-3,1)-A(row,1));
end
end
table = A(1:N-1,3:N+1);
f = ydata(end);
for I = N:-1:1
f = f.*(x-xdata(I)) + A(1,I+1);
end
end
This doesn't seem to be returning the right answers at the moment. Where do I go from here?
  1 个评论
Geoff Hayes
Geoff Hayes 2015-10-12
Ollie - please add some comments to your code. What are the inputs? What algorithms have you implemented? Why do you think that incorrect answers are being returned?

请先登录，再进行评论。

请先登录，再回答此问题。

回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Polynomials 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by