Create char Cell Array with same string, multiple times

Question

Jeongsoo Bae 2018-2-15

0
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https://ww2.mathworks.cn/matlabcentral/answers/382924-create-char-cell-array-with-same-string-multiple-times

回答： Jeongsoo Bae 2018-2-15

采纳的回答： Jeongsoo Bae

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Hello,

I would like to write matlab command/code to make the program produce a char cell array, like,

'A'
'A'
'A'
'A'
'A'
'B'
'B'
.
.
.
and so on

but since I'm handling with few millions of dataset, I eagerly want to make the matlab do the job itself. The bottom is the command I tried, but there was no luck in middle way.

v=char( zeros(size(simpledata,1) + size(complexdata,1) , 1) );     %Create empty CHAR array, in total length of 2 LONG data -WAS OK
v(1:size(simpledata,1)) = "A" ;           %This is where I stopped

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James Tursa 2018-2-15

编辑：James Tursa 2018-2-15

Your question is unclear. You are using the single quotes ' ' to indicate char class, and also using the double quotes " " to indicate string class, and then your title and text mention cell array. So what is it exactly that you want? A cell array of char strings, a cell array of string class variables, a string array, a char matrix, or what? How are you going to use this downstream in your code?

Jeongsoo Bae 2018-2-15

I mixed the things up :p Sorry about it! I am now trying to make this to be used in boxplot, as a grouping variable that lets boxplot know where the values should belong to.

As the attached picture says, I would like to generate Origin Char array, all at once.

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