Check If A Fieldname Exists In Mat File

Let us say i look for whether any pdf file is present in my working directory.

Check if a fieldname exists in mat file.

To determine if a field exists at any level in a nested structure create a new function that examines all levels of the structure. Like saving as file2 mat if file mat already exist 0 comments. Here is a simple example to read all the mat files in a given directory and load a variable named myvar if it exists. 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.

Note that we use the isequal bit to check if it is actually a file or a folder. Show hide all comments. If we take the isequal check out then the first if statement would be true for a file and a folder since exist. Sign in to answer this question.

Here s how to do it. Check for existence of mat file in search path. Show hide all comments. The file folder to find.

If it does not find a variable of that name it will throw a warning. 0 name does not exist or cannot be found for other reasons. If it does find one it will load the variable. 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.

Sign in to comment. I require to check whether any file exists with a specific extension in a given folder. Matlab does not accept wildcard commands like. 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.

Function checkiffieldnameexists fieldname as string filename as string as string dim db as database dim table as table dim field as field dim i. Show hide all comments. Save the function as a matlab file named myisfield m. 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.

Follow 90 views last 30 days dm on 8 may 2012. I get false back which i normally would interpret as the mat file doesn t exist in the matlab search path. Sign in to comment. Same applies for the seamount image.

However imgdata load mandrill works perfectly fine. 1 name is a variable in the workspace. Open the matlab editor and paste the following function into it. Categories matlab app building.