How do I input multiple values in an array/matrix multiple times?

Question

Michael Arvin 2022-2-24

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1657370-how-do-i-input-multiple-values-in-an-array-matrix-multiple-times

回答： KSSV 2022-2-24

Hello. I am trying to input multiple values in an array/matrix multiple times. So far I've tried using a for-loop but it only changes the values what's inside of the array instead of adding more. How do I do it?

% Get all complete rotations
cnt = 1;
ResEncoder = 8192;
for i = 2:1:lRawDat
    
    if (abs(Value(i) - Value(i-1)) > (ResEncoder / 2))
        % IdxStart indicates the start of each rotation
        IdxStart(cnt) = i;
        cnt = cnt + 1;
    end
end
% Each cnt represents 1 rotation with values from 0-8191
d = zeros(cnt-1, 1);
for i = 1:1:cnt-1
    a = Value(IdxStart(i):IdxStart(i+1)-1);
    b = Time(IdxStart(i):IdxStart(i+1)-1);
    c = polyfit(b,a,1);
    d(i) = polyval(c,b);
end

I know this is not how it's supposed to be written. But are there any suggestions on how to do so?

Thank you very much!

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Answer 1

KSSV 2022-2-24

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1657370-how-do-i-input-multiple-values-in-an-array-matrix-multiple-times#answer_903340

在 MATLAB Online 中打开

Save them into a cell.

d = cell(cnt-1, 1);
for i = 1:1:cnt-1
    a = Value(IdxStart(i):IdxStart(i+1)-1);
    b = Time(IdxStart(i):IdxStart(i+1)-1);
    c = polyfit(b,a,1);
    d{i} = polyval(c,b);
end
celldisp(d)