I have a char data. I want to extract first column from this char data.

Question

sermet 2013-7-9

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https://ww2.mathworks.cn/matlabcentral/answers/81588-i-have-a-char-data-i-want-to-extract-first-column-from-this-char-data

采纳的回答： Evan

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%for example,

out1 =

p.11 109 820 109

p.12 503 159 117

p.13 234 207 151

p.14 139 134 215

Name Size Bytes Class Attributes

out1 1x188 376 char global

% what I want is that extract the first column if we think as a matrix. (p.11,p.12,p.13,p.14) %also, the first column would include only numbers so I need the codes which works both number and number-character mixed.

thanks in advance

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Answer 1

Evan 2013-7-9

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编辑：Evan 2013-7-9

在 MATLAB Online 中打开

If out1 is your string:

pgs = char(regexp(out1,'p\.\d+','match'));

Note that this requires out1 be a 1xn array, which it looks like it is. The reason for the char command is that regexp returns a cell array of matching strings. If a cell array works for you, just remove the char function.