How to assign column headings to .mat file?

22 次查看（过去 30 天）
hema purad
hema purad 2022-10-4
编辑： Ajai Singh 2022-10-4
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.
  1 个评论
Ajai Singh
Ajai Singh 2022-10-4
编辑：Ajai Singh 2022-10-4
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

请先登录，再进行评论。

请先登录，再回答此问题。

回答（2 个）

Walter Roberson
Walter Roberson 2022-10-4
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.
Nicole
Nicole 2022-10-4
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

类别

在 Help Center 和 File Exchange 中查找有关 Images 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by