Thread Subject: opening files in DIFFERENT directories

I am having problems with fopen.

filename=test.m
fopen(filename,'r')

works fine, but:

fopen(fullfile('directory1','directory2',filename,'r')) OR
fopen('directory1','directory2',filename,'r') OR
fopen(/directory1/directory2/filename,'r'))

do NOT. (the latter command works in UNIX but not windows).

So how do I open a file that's not in my working directory ??

On Jul 5, 1:14 pm, "Juliette Salexa" <juliette.physic...@gmail.com>
wrote:
> I am having problems with fopen.
>
> filename=test.m
> fopen(filename,'r')
>
> works fine, but:
>
> fopen(fullfile('directory1','directory2',filename,'r')) OR
> fopen('directory1','directory2',filename,'r') OR
> fopen(/directory1/directory2/filename,'r'))
>
> do NOT. (the latter command works in UNIX but not windows).
>
> So how do I open a file that's not in my working directory ??

When you say that this worked in Unix:
fopen(/directory1/directory2/filename,'r'))
I think you're telling porkies.

For a start, it ends with )), which is bad syntax.
Secondly, there are no quotes around the string.
Furthermore, you need to attach a handle.
This might work in Unix (if the names are correct):
fid=fopen('/directory1/directory2/filename','r');

Now, the reason this does not work in Windows has nothing to do with
Matlab.
It's the way you define the file in windows.
It needs to be:
fid=fopen('../directory1/directory2/filename','r');
or
fid=fopen('c:/directory1/directory2/filename','r');
or, even better:
fid=fopen('c:\directory1\directory2\filename','r');

On Jul 4, 9:14 pm, "Juliette Salexa" <juliette.physic...@gmail.com>
wrote:
> I am having problems with fopen.
>
> filename=test.m
> fopen(filename,'r')
>
> works fine, but:
>
> fopen(fullfile('directory1','directory2',filename,'r')) OR
> fopen('directory1','directory2',filename,'r') OR
> fopen(/directory1/directory2/filename,'r'))
>
> do NOT. (the latter command works in UNIX but not windows).
>
> So how do I open a file that's not in my working directory ??

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For the first one, I don't believe fulfile() takes an "r" argument.
Move the 'r' outside the fullfile() arg list.
For the second one, you need to pass in the full filename, not a bunch
of partial filenames.
For the third one, you need to have the full filename inside single
quotes, not just hardcoded in without any quotes like you did.