MATLAB: Subtracting numbers from a date serial

substract one

suppose i have a matrix with the following numbers
736274
736273
736246
736245
736211
736210
736183
736182
i want to turn the above into the following
736274
736273
736272
736246
736245
736244
736211
736210
736209
736183
736182
736181
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);

Best Answer

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
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