How can I create an array from the past values in a loop?

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Tatiana Kobachishvili 2021-10-25

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https://ww2.mathworks.cn/matlabcentral/answers/1571493-how-can-i-create-an-array-from-the-past-values-in-a-loop

编辑： Ive J 2021-10-25

I have a loop code that gives the str a different value each time it runs but how would I combine all those string values into one?

For example my str values are 'Coco' , 'Gustavo', 'Ellen'

These are passed values of the str. So right now str would be equal to 'Ellen'.

how can I make an array that contains all of them?

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Answer 1

Ive J 2021-10-25

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something like this?

n = 10; 
str = strings(n, 1);
for i = 1:n
    % do whatever
    str(i, 1) = gimmeMystr;
end

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Tatiana Kobachishvili 2021-10-25

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Hmm, I'm not sure if this would work. Maybe I was not clear with my question. Let me write out my code:

names = ['Coco Gustavo Ellen'] %there are x amount of names
charVec = []
while ~isempty(names)
[name,names] = strtok(names, ' '); 
charVec = char(name)  %this is where I need help as this only displays the current value 
%of name not all of them. 
end

As you can see, I want the names in one string and I am using strtok to seperate them, and then I want to put it back together as ['Coco' 'Gustavo' 'Ellen']

Ive J 2021-10-25

编辑：Ive J 2021-10-25

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What's your goal here? If you wanna split the input string, why don't you try split?

names = ["Coco Gustavo Ellen", "hej bye now or never"];
sepnames = arrayfun(@split, names, 'uni', false);
sepnames{1}
ans = 3×1 string array
    "Coco"
    "Gustavo"
    "Ellen"
sepnames{2}
ans = 5×1 string array
    "hej"
    "bye"
    "now"
    "or"
    "never"