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How can I change fileID name in a for loop?

Asked by Maazen ALSABAAN

Maazen ALSABAAN

on 14 Nov 2012
Accepted Answer by Pedro Villena

Pedro Villena

Hi, I have this for loop

for i=1:3
    if i==1
    fid = fopen('report_1.xls', 'wt');       
    end
    if i==2
    fid = fopen('report_2.xls', 'wt');        
    end
    if i==3
    fid = fopen('report_3.xls', 'wt');        
    end
end

In fact, I have much bigger than this loop. The problem is that I have to repeat fopen for each i. My question is can I avoid the if statements. So, the value of i can be written in fileID without adding it manually. For example,

for i=1:3
   fid = fopen('report_i.xls', 'wt');       
end

The above example will create a file named "report_i". However, I want to create 3 files named "report_1" , "report_2", and "report_3". How can I do that?

Thank you so much in advance

0 Comments

Maazen ALSABAAN

Maazen ALSABAAN

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2 Answers

Answer by Pedro Villena

Pedro Villena

on 14 Nov 2012
Edited by Pedro Villena

Pedro Villena

on 14 Nov 2012
Accepted answer
 for i=1:3
    fid(i) = fopen(sprintf('report_%d.xls',i), 'wt');       
 end

1 Comment

Maazen ALSABAAN

Maazen ALSABAAN

on 14 Nov 2012

Thank you! I appreciate it

Pedro Villena

Pedro Villena

Answer by C.J. Harris

C.J. Harris

on 14 Nov 2012

2 Comments

Maazen ALSABAAN

Maazen ALSABAAN

on 14 Nov 2012

Thank you! I appreciate it

Jan Simon

Jan Simon

on 14 Nov 2012

And when you read this section of the FAQ, read the rest also. It is very efficient to profit from the mistakes, which have been made repeatedly by others.

C.J. Harris

C.J. Harris

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