How to assign column headings to .mat file?

I have some statiscal measures such as mean, medan, standard devation calculated on 1000 images and there is one row for each image hence there are 1000-by-3 data is generated for image database and I have stored this data as .Mat file. and I would like to add column headings ,(mean, median, standard deviation) to that "mat file" so that, I can access data by column headings for further calculations.. Kindly help me in this regard.

Thanking You.

[Ajai Singh]

You can probably try this : ( assuming the name of your mat file is MyData and variables mean median and standard_deviation have their respective values)

a.mean = mean;
a.median  = median;
a.standard_deviation = standard_deviation;
save( ' MyData.mat ' ,' a ' );

Load this mat file and use dot notation to extract the values;

ImageData = load( ' MyData.mat ' );

Now suppose that you want to extract the mean, the following line will help you to do that :

ImageData.mean

Answer 1

[Walter Roberson]

It is not possible to add column headings to a mat file.

However you can create a table() object and store it in the mat file.

Answer 2

[Nicole]

It might be helpful to save the data into a structure, where you can assign field names. In this way, you could make mean, median, and standard deviation be your fields, and index them as such. MATLAB structures can be saved as .mat files.

Here is more informatin on structures: https://www.mathworks.com/help/matlab/matlab_prog/create-a-structure-array.html