Check If A Fieldname Exists In Mat File

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Check if a fieldname exists in mat file.

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. I require to check whether any file exists with a specific extension in a given folder. 1 name is a variable in the workspace.

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. 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.

Here s how to do it. Same applies for the seamount image. Sign in to comment. Sign in to answer this question.

Function checkiffieldnameexists fieldname as string filename as string as string dim db as database dim table as table dim field as field dim i. Let us say i look for whether any pdf file is present in my working directory. 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. 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.

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. Like saving as file2 mat if file mat already exist 0 comments. Check for existence of mat file in search path. Show hide all comments.

Matlab does not accept wildcard commands like. Categories matlab app building. Show hide all comments. Save the function as a matlab file named myisfield m.

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. Open the matlab editor and paste the following function into it. To determine if a field exists at any level in a nested structure create a new function that examines all levels of the structure. The file folder to find.

If we take the isequal check out then the first if statement would be true for a file and a folder since exist. However imgdata load mandrill works perfectly fine. If it does find one it will load the variable. Sign in to comment.