resizing an array in MATLAB

Question

Gernot Beer 2020-2-20

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https://ww2.mathworks.cn/matlabcentral/answers/506653-resizing-an-array-in-matlab

回答： Athul Prakash 2020-2-23

I have an array that is declared global and after first definig it and using it with size [1,3] - for example - I want to resize it to be [1,2] for the next step.

Code:

> global sin

> sin= [1 2 3]

> resize sin to only have 2 columns.

Thanks for your help.

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Alex Mcaulley 2020-2-20

This is very basic. I recommend you to do the Matlab tutorial

the cyclist 2020-2-20

I second the general recommendation to go through a basic tutorial.

But, also, I have some suggestions/questions:

You should not define a variable called sin. That is a MATLAB keyword for the sine function. It is poor programming practice to name variables with keywords.
Why are you defining the variable to be global? That is almost never necessary, especially in the sorts of programs a beginner will be using.
Your variable has 3 values. How can you make it into a size [1,2] array? Do you want to discard a value?

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