How to delete a variable in a MAT-file, which corresponds to an instance of matlab.io.MatFile
조회 수: 4 (최근 30일)
이전 댓글 표시
Background
I use an instance of   matlab.io.MatFile   to store and manipulate huge variables. (Huge compared to the capacity of my PC.) During the development of my code I create too many useless variables in the mat-file. The size of the mat-file and the number of variables increases.
The mat-file is version v7.3, which is an HDF5-file. With HDF5 there is no easy way to delete a dataset and recover the space. It is possible to "unlink" a variable and copy the HDF5-file to a new one.
Question
How to delete a variable in a MAT-file, which corresponds to an instance of   matlab.io.MatFile ?   Is there a better way than copy the variables, which I want to keep, to a new mat-file and delete the old one?
댓글 수: 0
채택된 답변
추가 답변 (1개)
Stalin Samuel
2014년 10월 24일
댓글 수: 1
Jim Hokanson
2018년 1월 5일
For reference, as of Jan 2018 the linked file simply loads all of the variables to keep and saves them into a new file.
참고 항목
카테고리
Help Center 및 File Exchange에서 Workspace Variables and MAT-Files에 대해 자세히 알아보기
제품
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!