Matlab Exist Mat File

How come matlab knows where to look for the file data when using load and not when using exist.

Matlab exist mat file. I don t know if there is a way to convert the matfile contents into a list of some sort or if there s a simpler way to check for variables. If you instead write exist mandrill mat file it should work. If name is an mdl file on your matlab search. If name does not exist.

Btw i was wondering if this check is purely done regarding the file name or the content in the file itself the thing is i m trying to develop a script to regularly copy files from a sourcefolder to a destinationfolder but i wanted to make sure i copy only the most recent and modified data in order to get a more efficient and quicker programme. It also returns 2 when name is the full pathname to a file or the name of an ordinary file on your matlab search path. If filename has no extension that is no period followed by text and the value of format is not specified then matlab appends mat if filename does not include a full path matlab saves to the current folder. Filename can include a full or partial path.

If name is a mex or dll file on your matlab search path. Otherwise matfile searches for the file along the matlab search path. 2 name is a file with extension m mlx or mlapp or name is the name of a file with a non registered file extension mat fig txt. Sign in to comment.

This can be done by specifying additional arguments to the load command. If name is an m file on your matlab search path. If filename does not include an extension matfile appends mat. If name is a variable in the workspace.

If it does not find a variable of that name it will throw a warning. Thanks for the information. Problem is that i d like to have a test similar to. This gives me a 1x1 matlab io matfile type in the workspace.

And when i try to see if a certain variable exists using exist or isfield i get logical 0. If exist mandrill bla bla bla. Matlab will search for each additional string argument as a variable name within the mat files specified in the first argument. If the file does not exist matfile creates a version 7 3 mat file on the first assignment to a variable.

For example if name exists in a restricted folder to which matlab does not have access exist returns 0. 1 name is a variable in the workspace. Sign in to answer this question. If it does find one it will load the variable.

Learn more about search path exist. 0 name does not exist or cannot be found for other reasons.