Check If A Fieldname Exists In Mat File

The file folder to find.

Check if a fieldname exists in mat file.

Let us say i look for whether any pdf file is present in my working directory. 0 name does not exist or cannot be found for other reasons. 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. Open the matlab editor and paste the following function into it.

I require to check whether any file exists with a specific extension in a given folder. For example if name exists in a restricted folder to which matlab does not have access exist returns 0. If it does find one it will load the variable. If we take the isequal check out then the first if statement would be true for a file and a folder since exist.

Note that we use the isequal bit to check if it is actually a file or a folder. Follow 90 views last 30 days dm on 8 may 2012. Sign in to answer this question. Here s how to do it.

Is there an option in save or any other function which support automatic renaming if the filename already exists or do i need to check by myself. Check for existence of mat file in search path. Sign in to comment. 1 name is a variable in the workspace.

Sign in to answer this question. Is there a way to check the files exists in a particular directory without using the filename what i mean to say is the more generalised way to find out 0 comments. To determine if a field exists at any level in a nested structure create a new function that examines all levels of the structure. Save the function as a matlab file named myisfield m.

Function checkiffieldnameexists fieldname as string filename as string as string dim db as database dim table as table dim field as field dim i. Same applies for the seamount image. So you want to check if a file or a folder exists in matlab. If it does not find a variable of that name it will throw a warning.

This routine will check to see if a field name exists and if it the field name already exists then it will return a field name that does not exist by adding a 1 to the end of the field name. However imgdata load mandrill works perfectly fine. Matlab does not accept wildcard commands like. Show hide all comments.

Sign in to comment. Here is a simple example to read all the mat files in a given directory and load a variable named myvar if it exists. Show hide all comments. Show hide all comments.