Remove rows from cell Array which have string in the first column

Question

rhai123 2017-7-28

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/350609-remove-rows-from-cell-array-which-have-string-in-the-first-column

编辑： Andrei Bobrov 2017-7-28

I have a cell array of the following format:

   M=['test'  '12'  '122' '...'
      'test2' '123' '234' []
      '1234'  'RR'  '123' []
      'test4' '123' '234' []
      '2341'  'KK'  's'   []
      '1121'  'pp'   []   []
      'tesst3' '12'  '122' '...'
  ]

I want to remove all rows that have a string which is not a number in the first column. The result array is:

   result=[   
      '1234'  'RR'  '123' []
      '2341'  'KK'  's'   []
      '1121'  'pp'   []   []
]

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Answer 1

Andrei Bobrov 2017-7-28

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/350609-remove-rows-from-cell-array-which-have-string-in-the-first-column#answer_275877

编辑：Andrei Bobrov 2017-7-28

在 MATLAB Online 中打开

M={'test'  '12'  '122' '...'
      'test2' '123' '234' []
      '1234'  'RR'  '123' []
      'test4' '123' '234' []
      '2341'  'KK'  's'   []
      '1121'  'pp'   []   []
      'tesst3' '12'  '122' '...'}
result = M(~cellfun('isempty',regexp(M(:,1),'^\d+$')),:)