savemat

save workspace variables to .mat file

Syntax

• savemat(filename)
• savemat(filename, version, var1, ..., varN)
• savemat(filename, '-append', ...)
• savemat(filename, '-nocompression', ...)

Input argument

• filename - a string: .nh5 filename.
• var1, ..., varN - string: Names of variables to save from Nelson's workspace.
• '-v7.3' - default mat file used.
• '-v7' - mat file version 7 used as output format.
• '-v6', '-v4' - mat file version 6 or 4 used as output format.
• '-append' - append variables to an existing .mat file (-v7.3 only).
• '-nocompression' - disable .mat file compression.

Description

savemat save workspace variables to .mat file.

Nelson's data types are converted into the Mat file equivalents.

Bibliography

Thanks to MATIO library (http://sourceforge.net/projects/matio/).

Examples

A = ones(3, 4);
B = 'hello for open mat users';
savemat([tempdir(), 'example_loadmat.mat'], 'A', 'B')
clear;
st = loadmat([tempdir(), 'example_loadmat.mat']);
who
st.A
st.B
clear
who
loadmat([tempdir(), 'example_loadmat.mat']);
who
A
B

append variables

C = eye(3, 4);
savemat([tempdir(), 'example_loadmat.mat'], 'C', '-append')
clear;
st = loadmat([tempdir(), 'example_loadmat.mat']);
who
st.A
st.B
st.C
clear
who
loadmat([tempdir(), 'example_loadmat.mat']);
who
A
B
C

compression

C = eye(1000, 1000);
savemat([tempdir(), 'example_savemat_with_compression.mat'], 'C')
savemat([tempdir(), 'example_savemat_no_compression.mat'], 'C', '-nocompression')
with_compression = dir([tempdir(), 'example_savemat_with_compression.mat'])
no_compression = dir([tempdir(), 'example_savemat_no_compression.mat'])

See also

loadmat, save, savenh5.

History

Author

Allan CORNET