how to convert a cell array to a string array

Question

梓昂郑 2022-1-10

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1625730-how-to-convert-a-cell-array-to-a-string-array

评论： Walter Roberson 2023-5-13

I have a cell array of 2048*1,each cell countains a string element, and i want to convert it into a string array (so that i could make it one hot coded)

how cloud i slove it?

2 个评论
显示无隐藏无

Stephen23 2022-1-10

编辑：Stephen23 2022-1-10

"I have a cell array of 2048*1,each cell countains a string element..."

Highly unusual and not recommended: "Avoid using cell arrays of strings. When you use cell arrays, you give up the performance advantages that come from using string arrays."

source: https://www.mathworks.com/help/matlab/matlab_prog/frequently-asked-questions-about-string-arrays.html#mw_ea39fa70-6d47-4204-80b4-9abb58bbce77

The best solution is to avoid creating this cell array in the first place, and instead store the data in a string array (or as a cell array of character vectors) right from the start. How was this cell array created?

Kelvin Prosyk 2023-5-13

The OP is valid. There could be situations where it is unavoidable. For example, reading in mixed data from an Excel spreadsheet using the readcell function.

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Yusuf Suer Erdem 2022-1-10

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1625730-how-to-convert-a-cell-array-to-a-string-array#answer_871515

在 MATLAB Online 中打开

S = {'Hello',' ','world',' ','i',' ','am',' ','here'}
ss = [S{:}]

4 个评论
显示 2更早的评论隐藏 2更早的评论

Kelvin Prosyk 2023-5-13

编辑：Kelvin Prosyk 2023-5-13

Any valid answer to this question? OP wanted to convert to an array of strings, not a single vector of char. I have a similar problem.

Walter Roberson 2023-5-13

在 MATLAB Online 中打开

S = {"Hello"," ","world"," ","i"," ","am"," ","here"}.'
S = 9×1 cell array
    {["Hello"]}
    {[" "    ]}
    {["world"]}
    {[" "    ]}
    {["i"    ]}
    {[" "    ]}
    {["am"   ]}
    {[" "    ]}
    {["here" ]}
SA = reshape([S{:}], size(S))
SA = 9×1 string array
    "Hello"
    " "
    "world"
    " "
    "i"
    " "
    "am"
    " "
    "here"