Loop to create a matrix with adding a constant value to a matrix

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Min 2023-8-28

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2013967-loop-to-create-a-matrix-with-adding-a-constant-value-to-a-matrix

编辑： Dyuman Joshi 2023-8-28

采纳的回答： Dyuman Joshi

I am trying to make a loop that can save the iterations and add a contant value to a matrix.

For example,

I am very sorry for the poor picture :( hopefully there is an easy way to do this. Thanks

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Les Beckham 2023-8-28

You will need to provide more detail to get a good answer. For example:

What have you tried so far (show your code) and why do you think it isn't working? If you are getting error messages, cut and paste the entire error message (everything in red in the command window).
How many of each "constant" should be in the final vector and what are the values of the "constants"? Just 0, 2, and 4?
Why do you think you need a loop in the first place?

Also, if you are just getting started with Matlab, I would highly recommend that you take a couple of hours to go through the free online tutorial: Matlab Onramp

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Answer 1

Dyuman Joshi 2023-8-28

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2013967-loop-to-create-a-matrix-with-adding-a-constant-value-to-a-matrix#answer_1295177

编辑：Dyuman Joshi 2023-8-28

You can either

Preallocate a zero array and add elements using ones or repelem via indexing.
Obtain the final matrix via repelem or repmat and display the sub-arrays for iteratively.