Change every string in a cell array and covert it to numbers without loop?

Question

I have following cell array of strings:

daycell = 

'd100'
'd104'
'd105'

I would like to make an array of numbers from it like this:

array =

100   104   105

I can accomplish it using loop:

daycell = {'d100';'d104';'d105'}
array = [];
for g = 1:1:length(daycell)
    array(g) = str2double(daycell{g}(2:end));
end

Is is possible to do it without loop? Is is even better using it without loop? The daycell has much more rows in real.

So far I am able to eliminate the d letter using:

daym = cell2mat(daycell);
daynoD = daym(:,2:end);

daynoD =

100
104
105

but I do not know what to do with the matrix of characters.

@H.Muster ahh..true, I tried str2double but it is not that clever function, thx — MasterPJ
– MasterPJ, Commented Jan 7, 2013 at 15:12

Jonas · Accepted Answer · 2013-01-07 14:48:11Z

4

One way is to use cellfun

cellfun(@(x)str2double(x(2:end)),daycell);

answered Jan 7, 2013 at 14:48

Jonas

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1 Comment

Nice one, Matlab has so many useful functions that it is difficult to keep track on them. .