Add element to a given vector

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steve Brian 2020-4-10

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https://ww2.mathworks.cn/matlabcentral/answers/516906-add-element-to-a-given-vector

评论： steve Brian 2020-4-10

采纳的回答： per isakson

I have a vector of the format:

x = [X1 X2 … Xn]

I want to add an element to the end, X(n+1). How do I do that?

x = [ X1 X2 .. Xn X(n+1) ]

ex: x = [ 1 4 2 8]

newX = [ 1 4 2 8 9]

A little help, please!

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per isakson 2020-4-10

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编辑：per isakson 2020-4-10

在 MATLAB Online 中打开

One way

>> x = 1:6
x =
     1     2     3     4     5     6
>> x(end+1)=17
x =
     1     2     3     4     5     6    17
>> 

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per isakson 2020-4-10

在 MATLAB Online 中打开

I'm even more confused

"I have already the newV, but i want to add that n+1 element"

Isn't that exactly what's done by

NewV(end+1) = 22;

steve Brian 2020-4-10

Sorry I am not precise .. I want to be an algorithm that takes each element of the vector and when it has reached the end, to add them ( without specifying it) the last element + 1

Something like:

V = [ x1 x2 x3 ...... xN]

Let's say p is the algorithm or function. P will check each element in the vector, and when it reaches its tail, the end of the vector, add +1 to the last element

new V = [ x1 x2 x3 .... xN x(N+1) ]

p = x1 (first element)

p = x1 x2 (second elem)

p = x1 x2 x3 ( third el)

p = x1 x2 x3 .. xN ( oh, the N element is the tail, i need to put the last element to this tail, N +1, to be like N N +1)

finally: new V = [ x1 x2 x3 .... xN x(N+1) ]

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