Matlab - read a specific format line

Question

I have a file which contains data in the following format 0,"20 300 40 12".

How can I read this data with sscanf function such that I store 0 in a separate variable and 20 300 40 12 in another variable. The problem is that the array within the " " changes its size, so I cannot use a fix length array. So I can have something like this within my file:

0,"20 300 40 12"
0,"20 300 43 40 12"
1,"22 40 12"

Can you give me a hint of how to read this?

similar question: http://stackoverflow.com/questions/16242074/textscan-in-matlab-when-delimiter-is-in-a-field-and-what-to-ignore-character — Amro, Apr 27 '13 at 18:35

fpe · Accepted Answer · 2013-04-26T09:17:01.677

2

Have you tried with this:

fid = fopen(filename,'r');  
A = textscan(fid,'%d,%q','Delimiter','\n');

edited Apr 26 '13 at 09:17

answered Apr 26 '13 at 09:10

fpe

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score 0 · Answer 2 · answered Apr 26 '13 at 09:23

Here's another way to do it:

[a,b] = textread('ah.txt','%d,"%[^"]"');
fun = @(x) split(' ',x);
resb = cellfun(fun,b,'UniformOutput',false)
res = {a resb};

function l = split(d,s)
%split string s on string d
out = textscan(s,'%s','delimiter',d,'multipleDelimsAsOne',1);
l = out{1};

Matlab - read a specific format line

2 Answers2