Opening MATLAB Binary Files Using Fortran?

[Watwood]

Anyone every done it? I know Fortran has it's own binary format that differs from others. Any tips on how to do this?

Thanks.

 

[xwb]

Do you know what the format is? Fortran's binary formats will read what ever record length is required.

 

[Watwood]

It's a .mat file I created in MATLAB. Is that what you're asking?

 

[xwb]

The .mat file format is described in

http://www.mathworks.com/access/helpdesk/help/pdf_doc/matlab/matfile_format.pdf

You can read it with a record length of 2 or 4. Alternatively, it can be read into a 256 character string and "transfer"red to integer*2, integer*4, real*4, real*8, depending on what is in the structure.

 

[Watwood]

So would you open and read it like this?:

open(unit=67, file = 'binary_file.mat', status = 'unknown', form = 'unformatted', access='direct', recl = '2')

do while (.not. EOF(67))
read(67,*) input(num_line)
enddo

 

[Watwood]

My ghetto adobe reader won't read that .pdf you put up, i'll know more once I read that...

 

[xwb]

Something like this

integer*2 input(8192)
open(unit=67, file = 'binary_file.mat', status = 'old', form = 'unformatted', access='sequential', recl =2)

num_word = 1
do while (.not. EOF(67))
    read(67) input(num_word)
    num_word = num_word + 1
enddo

You can't use implied do loops - the cursor does not move along.