How to skip ( and ) while using textscan?

Question

I'm trying to read numbers in a text file line by line. Each line in the file is like this:

(563,478),(630,573),1

I tried the command below but it didn't work:

textscan(f1, '%d%d%d%d%d', 'delimiter', ',');

How can I skip the ")" and "("? I want to read only the numbers.

Here is one of the text files. (the red button)

rahnema1 · Accepted Answer · 2017-03-19T14:45:22.753

2

You can do:

textscan(f1, '(%d,%d),(%d,%d),%d')

to scan a file or

sscanf(f1, '(%d,%d),(%d,%d),%d')

to scan a string.

Usage(tested in Octave):

f1 = fopen('005.txt','r');
c=textscan(f1, '(%d,%d),(%d,%d),%d');
fclose(f1);


f1 = '(401,596),(443,636),1'
sscanf(f1,'(%d,%d),(%d,%d),%d')

edited Mar 19 '17 at 14:45

answered Mar 19 '17 at 13:48

rahnema1

I tried what you suggest, but the result is the same as before. A 1x5 cell array in which all elements are like []. I think they are all empty. – Hadi GhahremanNezhad Mar 19 '17 at 14:02
1

@HadiGhahremanNezhad Format of the file may not be one that you assumed. You may upload the file. – rahnema1 Mar 19 '17 at 14:10
thanks @SardarUsama, but when I use `cell2mat` on the result, the output is an empty array with 1 element. I think the `textscan` is not reading the file correctly. – Hadi GhahremanNezhad Mar 19 '17 at 14:11
@rahnema1 thank you, the format of all the files is **.txt** . I will upload one of them in the question. – Hadi GhahremanNezhad Mar 19 '17 at 14:13
@HadiGhahremanNezhad I opened the file,no problem can be seen! – rahnema1 Mar 19 '17 at 14:23
@SardarUsama I tested in Octave. can you test `sscanf('(401,596),(443,636),1','(%d,%d),(%d,%d),%d')` ? – rahnema1 Mar 19 '17 at 14:34
I now understand the mistake here. The OP is doing this: `sscanf('005.txt', '(%d,%d),(%d,%d),%d')` – Sardar Usama Mar 19 '17 at 14:40
@SardarUsama I added some usage examples. – rahnema1 Mar 19 '17 at 14:45
1

instead of `fopen` and `fclose`, you can also use `fileread`. Although it is fine as it is – Sardar Usama Mar 19 '17 at 14:47
@SardarUsama Good suggestion. – rahnema1 Mar 19 '17 at 15:06
@SardarUsama and @rahnema1 thank you both. The `textscan` worked fine. The problem was with the `fopen` and `fclose`. – Hadi GhahremanNezhad Mar 19 '17 at 16:56

1 Answers1