How to store string into an array?

Question

Minu 2013-6-4

0
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https://ww2.mathworks.cn/matlabcentral/answers/77942-how-to-store-string-into-an-array

Hi

How to save string into array.I have string of characters and want to save in an array.

y(1)='0D05';
y(2)='0D06';
y(3)='0D10; and so on...How to solve this

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Answer 1

Chandrasekhar 2013-6-4

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try this Minu y= {'0D05','0D06','0D10'};

if u want to update the array during run time

y{i} = {str};

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Chandrasekhar 2013-6-4

在 MATLAB Online 中打开

I have entered the following commands on matlab command window and its working.

>> y= {'0D05','0D06','0D10'}; >> i = 4

i =

4

>> y{4} = '0D11'

y =

'0D05' '0D06' '0D10' '0D11'

Jan 2013-6-4

@Minu: Please care for always posting a complete copy of the message accompanied by the relevant part of the corresponding code. Without seeing the code, we would have to guess suggestions for improvements. Thanks.

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Answer 2

Daniel Shub 2013-6-4

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https://ww2.mathworks.cn/matlabcentral/answers/77942-how-to-store-string-into-an-array#answer_87645

在 MATLAB Online 中打开

You cannot access a string with y(1) easily. The problem is that your data is a character array and not a string array. This means that the notation y(1) is asking for a single element of a character array, which is a single character, but you want a string.

Assuming you are starting with some data that looks like

x = char(randi([1, 26]+64, 1, 4*10))

You can rearrange it to have the shape you want by putting 4 characters on a row.

y = reshape(x, [], 4);

You can then get a row with

y(1, :)

If you do not want the trailing colon, you could use a cell array

z = mat2cell(y, ones(10, 1), 4);

You can then get a row with

z{1}

If neither of these suffice you can use the OOP system to define your own string class and then you can use y(1) to get a single element of a string object which would be a character array.