'ab[c]' to this 'ab_c' ?

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Ioannis Vourvachakis 2021-11-6

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1580404-ab-c-to-this-ab_c

评论： Ioannis Vourvachakis 2021-11-6

采纳的回答： Image Analyst

How can I convert this 'ab[c]' to this 'ab_c' ?

The letters a,b,c are for the specific example.

In the position of c could be any letter.

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Steven Lord 2021-11-6

编辑：Steven Lord 2021-11-6

Are you trying to change a char vector containing this literal text, or are you trying to change indexing into a variable to instead have numbered names for variables?

If the latter, can you define variables with numbered names like ab_1, ab_2, ab_3, ... ? Yes. Should you do this? Generally we recommend against it. See that page for alternatives you should use instead.

Ioannis Vourvachakis 2021-11-6

编辑：Ioannis Vourvachakis 2021-11-6

I want to convert this cell array

'10fthf[c]'

'10fthf[h]'

'10fthf[m]'

'10fthf[x]' .

to this cell array

'10fthf_c'

'10fthf_h'

'10fthf_m'

'10fthf_x'

Ιn other words, I want to create a for loop, where for every element of the first cell array, it will remove the brackets ([]}and put a underscore (_) before the letter that it was previously contained in the brackets.

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Answer 1

Image Analyst 2021-11-6

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1580404-ab-c-to-this-ab_c#answer_825254

在 MATLAB Online 中打开

Try this:

s = 'ab[c]'
s = 'ab[c]'
s = strrep(s, '[', '_') % Replace [ with underline.
s = 'ab_c]'
s = strrep(s, ']', '') % Replace ] with null.
s = 'ab_c'

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Image Analyst 2021-11-6

在 MATLAB Online 中打开

For a cell array, it's the same code:

s = {'ab[c]'; 'xy[z]'}
s = strrep(s, '[', '_') % Replace [ with underline.
s = strrep(s, ']', '') % Replace ] with null.

If this answers your question, maybe you can click the "Accept this answer" link, unless you want to wait for a better one.

Ioannis Vourvachakis 2021-11-6

Yes, I accepted it. Thank you again.

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Answer 2

Paul 2021-11-6

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1580404-ab-c-to-this-ab_c#answer_825314

在 MATLAB Online 中打开

C = { '10fthf[c]' 
  '10fthf[h]' 
  '10fthf[m]' 
  '10fthf[x]'}
C = 4×1 cell array
    {'10fthf[c]'}
    {'10fthf[h]'}
    {'10fthf[m]'}
    {'10fthf[x]'}
cellstr(extractBefore(string(C),"[") + "_" + extractBefore(extractAfter(string(C),"["),2))
ans = 4×1 cell array
    {'10fthf_c'}
    {'10fthf_h'}
    {'10fthf_m'}
    {'10fthf_x'}