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. Follow 90 views last 30 days dm on 8 may 2012. Let us say i look for whether any pdf file is present in my working directory. Note that we use the isequal bit to check if it is actually a file or a folder.

To determine if a field exists at any level in a nested structure create a new function that examines all levels of the structure. Here is a simple example to read all the mat files in a given directory and load a variable named myvar if it exists. Sign in to answer this question. 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.

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. Save the function as a matlab file named myisfield m. If it does not find a variable of that name it will throw a warning. 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. Function checkiffieldnameexists fieldname as string filename as string as string dim db as database dim table as table dim field as field dim i. If it does find one it will load the variable. 1 name is a variable in the workspace.

I get false back which i normally would interpret as the mat file doesn t exist in the matlab search path. Show hide all comments. For example if name exists in a restricted folder to which matlab does not have access exist returns 0. Sign in to answer this question.

However imgdata load mandrill works perfectly fine. Check for existence of mat file in search path. Show hide all comments. The file folder to find.

Same applies for the seamount image. Show hide all comments. Like saving as file2 mat if file mat already exist 0 comments. Categories matlab app building.

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. Sign in to comment. If we take the isequal check out then the first if statement would be true for a file and a folder since exist.