append string to each element in string cell array

Question

Leor Greenberger 2011-10-14

5
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https://ww2.mathworks.cn/matlabcentral/answers/18322-append-string-to-each-element-in-string-cell-array

x_label = 
      '8'    '16'    '24'    '32'    '40'

How can I append ' GHz' to each element in the cell array? Thanks! Can it only be done with a for loop?

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Answer 1

Fangjun Jiang 2011-10-14

16
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https://ww2.mathworks.cn/matlabcentral/answers/18322-append-string-to-each-element-in-string-cell-array#answer_24618

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x_label = {'8'    '16'    '24'    '32'    '40'};
strcat(x_label,'GHz')

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Answer 2

Sean de Wolski 2011-10-14

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x_label = { '8'    '16'    '24'    '32'    '40'}
x_labelGHz = cellfun(@(c)[c 'GHz'],x_label,'uni',false)

One way

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Sean de Wolski 2011-10-14

yes, cellfun is basically a for loop that does the function to each cell.

The @(c)[c 'GHz'] takes a cell, c, and concatenates it horizontally with 'GHz'. I agree Fangjun's method is better for this case, I don't think I've ever used strcat before. cellfun is more powerful for other things. Perhaps if you wanted the strings as column vectors:

@(c)[c 'GHz'].'