How can I add query points between two adjacent points of sampled data？

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wd w 2024-2-24

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评论： Voss 2024-2-25

I have a representative subset of sample points as shown in column A (x), and intend to add query points (evenly) in interval of each two adjacent sample points of column A to make it as shown in column B (Xq).

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采纳的回答

Voss 2024-2-24

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https://ww2.mathworks.cn/matlabcentral/answers/2086288-how-can-i-add-query-points-between-two-adjacent-points-of-sampled-data#answer_1415688

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x = [1;3;4;6;10]
x = 5x1
     1
     3
     4
     6
    10
n = 4; % number of points to insert in each interval
N = numel(x);
q = linspace(1,N,(n+1)*(N-1)+1);
Xq = interp1(1:N,x,q).'
Xq = 21x1
    1.0000
    1.4000
    1.8000
    2.2000
    2.6000
    3.0000
    3.2000
    3.4000
    3.6000
    3.8000