Can I use fopen with num2str ?

Hi I have this problem, I have a lot of file and for read it I use this command:

if true
  % fid=fopen('cassone_freebody_data100001fx.dat','rt');  end

If I like to change that number 100001 How can I do?

I tried to write this command but it doesn't work

if true
  % fid=fopen('cassone_freebody_data',num2str(100001),'fx.dat','rt');  end

I like to link 100001 to a variable so to build a for function to increment this number please help me

Answer 1

[Walter Roberson]

fopen(['cassone_freebody_data',num2str(100001),'fx.dat'],'rt')

Or use sprintf

fopen(sprintf(cassone_freebody_data%06dfx.dat', 100001), 'rt')

Answer 2

[Jan]

Of course such problems occurred in the work of others also. Therefore I can encourage you to ask your favorite search engine before asking the forum:

http://www.lmgtfy.com/?q=Matlab+fopen+num2str

Answer 3

[zaqsedc]

sorry I traied but I was so tired anyway thak you so much