How to save variable as binary file?
显示 更早的评论
I have a variable dimension 
double in workspace.This contains 4 individual physiological data in 4 rows. I want to save this variable with lowest possible size in the current folder. If I am not wrong the file format should be binary. How do I save this variable in current folder as a .bin file sothat later I can load it and work with it?
double in workspace.This contains 4 individual physiological data in 4 rows. I want to save this variable with lowest possible size in the current folder. If I am not wrong the file format should be binary. How do I save this variable in current folder as a .bin file sothat later I can load it and work with it?采纳的回答
Ameer Hamza
2020-9-30
2 个投票
Save in a .mat file(); you will get much better compression: https://www.mathworks.com/help/matlab/import_export/mat-file-versions.html. In the bin file, each double number will take a full 8 bytes.
5 个评论
Ameer Hamza
2020-9-30
See the following example
rng(0);
M = rand(1000); % create matrix
save('data.mat', 'M'); % save using .mat
% save in .bin file
f = fopen('data.bin', 'w');
fwrite(f, M, 'double');
fclose(f);
% load from .bin file
f = fopen('data.bin', 'r');
data = reshape(fread(f, inf, 'double'), size(M)); % binary file also does not store the matrix dimensions by default
fclose(f);
Jhon Gray
2020-9-30
Ameer Hamza
2020-10-1
I am glad to be of help!
更多回答（0 个）
类别
在 帮助中心 和 File Exchange 中查找有关 Web Services 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
