subtracting numbers from a date serial

Question

AA 2015-11-7

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/253666-subtracting-numbers-from-a-date-serial

编辑： Stephen23 2015-11-7

suppose i have a matrix with the following numbers

i want to turn the above into the following

how can i do this? with the formula below i can only substract by one but i want to substract by one and two

result = reshape([date_num.'; date_num.'-1], [], 1);

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Answer 1

Star Strider 2015-11-7

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/253666-subtracting-numbers-from-a-date-serial#answer_198867

It takes three lines, not one, but you’re close:

result = reshape(date_num, 2, []);
result = [result; result(end,:)-1];
result = result(:)
result =
        736274
        736273
        736272
        736246
        736245
        736244
        736211
        736210
        736209
        736183
        736182
        736181