How to convert the values greater than one to less than one for a matrix stored in workspace

Question

jaah navi 2021-6-19

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https://ww2.mathworks.cn/matlabcentral/answers/860080-how-to-convert-the-values-greater-than-one-to-less-than-one-for-a-matrix-stored-in-workspace

回答： Star Strider 2021-6-19

I am having a matrix size (300x2000) stored in workspace.

In that some of the values are greater than 1 for example (1.345, 1.678, 2.345, 3.456, 4.456,....)

I want to changes those values to ( 0.345, 0.678, 0.345,0.456,....)

Could anyone help me how to change those values .

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Answer 1

Stephen23 2021-6-19

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https://ww2.mathworks.cn/matlabcentral/answers/860080-how-to-convert-the-values-greater-than-one-to-less-than-one-for-a-matrix-stored-in-workspace#answer_728210

在 MATLAB Online 中打开

M = [1.345, 1.678, 2.345, 3.456, 4.456]
M = 1×5
    1.3450    1.6780    2.3450    3.4560    4.4560
M = mod(M,1)
M = 1×5
    0.3450    0.6780    0.3450    0.4560    0.4560

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Answer 2

Star Strider 2021-6-19

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https://ww2.mathworks.cn/matlabcentral/answers/860080-how-to-convert-the-values-greater-than-one-to-less-than-one-for-a-matrix-stored-in-workspace#answer_728215

在 MATLAB Online 中打开

Use rem or mod —

v = [1.345, 1.678, 2.345, 3.456, 4.456 0.123  0.456];
vnew = rem(v,1)
vnew = 1×7
    0.3450    0.6780    0.3450    0.4560    0.4560    0.1230    0.4560

Using either with the second argument being 1 produces the fractional part of decimal fractions. (I added two others less than 1 to demonstrate that it does not affect them.)

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