Storing numbers with lots of decimal places in arrays

Question

HC98 2023-6-6

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https://ww2.mathworks.cn/matlabcentral/answers/1979084-storing-numbers-with-lots-of-decimal-places-in-arrays

回答： Star Strider 2023-6-6

I'm mmeasring some quantities using an analysis script and appending each one to a dummy array manually with

amplitude = [NaN, 1.395885890803748, 1.859485977632194, NaN, 2.887315445928234,...
    NaN, NaN, NaN, NaN, NaN, NaN]

Surely there must be a more efficient way to do this?

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Matt J 2023-6-6

Maybe, but we can't see what your script is doing now.

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Answer 1

Star Strider 2023-6-6

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Lacking detail as to what the analysis script does or what (if anything) it needs as input, I would put any input variables in an array (vector or matrix), put the ‘analysis script’ in a loop, and then supply each input iteratively in each iteration of the loop, and save the output of the ‘analysis script’ to a vector or matrix in each iteration.

Alternatively, create a function from the ‘analysis script’, call the function in each iteration of the loop, and save the output to a vector or matrix.