dbhole.mat contains 334 files and each file contains data of[2xn]. I want that how many 'h'(i.e h1,h2 etc) are in each 'd' (i.e d1,d2, etc)

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MUKESH VIKRAM
MUKESH VIKRAM 2016-6-30
编辑： Andrei Bobrov 2016-7-1
for example, for d1, it has total 20h(d1h1,d1h2...d1h20). how to index out all the'h'in d1,d2...d14

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回答（2 个）

Andrei Bobrov
Andrei Bobrov 2016-7-1
编辑：Andrei Bobrov 2016-7-1
clear
load dbhole
a = whos;
n0 = {a.name}';
x = regexp(n0,'\d*','match');
x = x(~cellfun(@isempty,x));
x = cat(1,x{:});
z = sortrows(str2double(x));
[aa,~,c] = unique(z(:,1));
out = [aa, accumarray(c,1)];
Stalin Samuel
Stalin Samuel 2016-6-30
Below approach may solve your problem
load dbhole
nfile = struct2cell(whos)
ret = nfile(1,1:end)
Refer regexp which will be useful for you

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