How to remove additional comma from string?

Question

Pete sherer 2022-8-25

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1786595-how-to-remove-additional-comma-from-string

移动：Rik 2022-8-26

采纳的回答： Stephen23

tdat = ["t1,t2,t3", "d2,d3,d4,"]'

How can I remove the extra comma delimiter from string above so result is

tdat = ["t1,t2,t3", "d2,d3,d4"]'

Thanks

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Rik 2022-8-25

What have you tried? There are general purpose functions that can do this, as well as string specific functions.

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Answer 1

Stephen23 2022-8-26

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https://ww2.mathworks.cn/matlabcentral/answers/1786595-how-to-remove-additional-comma-from-string#answer_1034010

在 MATLAB Online 中打开

tdat = ["t1,t2,t3"; "d2,d3,d4,"]
tdat = 2×1 string array
    "t1,t2,t3"
    "d2,d3,d4,"
tdat = regexprep(tdat,',+$','')
tdat = 2×1 string array
    "t1,t2,t3"
    "d2,d3,d4"

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Pete sherer 2022-8-26

移动：Rik 2022-8-26

Thanks very much for your suggestions

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Answer 2

Image Analyst 2022-8-25

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1786595-how-to-remove-additional-comma-from-string#answer_1033695

在 MATLAB Online 中打开

Try endsWith and extractBefore like this:

tdat = ["t1,t2,t3",  "d2,d3,d4,"]'
tdat = 2×1 string array
    "t1,t2,t3"
    "d2,d3,d4,"
for k = 1 : numel(tdat)
    if endsWith(tdat(k), ',')
        strLength = length(char(tdat(k)));
        tdat(k) = extractBefore(tdat(k), strLength)
    end
end
tdat = 2×1 string array
    "t1,t2,t3"
    "d2,d3,d4"
tdat
tdat = 2×1 string array
    "t1,t2,t3"
    "d2,d3,d4"