操纵单元阵列元素

Question

我有一个包含元素"abc"，"def"，"ghi"的单元格数组。

有谁能告诉我如何将其转换为"aa bb cc"，"dd ee ff"，"gg hh ii"？

我结束了"abcabc"等等。

Answer 1

如何使用常规表达式？

x = {'abc', 'def', 'ghi'}; %// cell array of strings
y = regexprep(x, '.', '$0$0 '); %// duplicate each character and insert a blank space
y = regexprep(y, ' $', ''); %// remove last space 

这给出了

y = 
    'aa bb cc'    'dd ee ff'    'gg hh ii'

Answer 2

>> t = {'abc','def'}
>> tnew = cellfun(@(x)reshape([x' x' repmat(' ',numel(x),1)]',1,[]),t,'UniformOutput',false)

tnew = 

'aa bb cc '    'dd ee ff '

There will be a trailing whitespace after each string but you can get rid of that using strtrim.

>> strtrim(tnew)

ans = 

'aa bb cc'    'dd ee ff'