Fast method of data storage / retrieval?

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Darin McCoy
Darin McCoy 2011-8-2
Hi,
I have a set of file paths that i currently store in cell format every day. For example, Files is a 3x1 cell that contains paths in C:\genscripts
Files =
'C:\genscripts\AT-735-PD_T4P00252.txt'
'C:\genscripts\AT-740-CANcase_projects.txt'
'C:\genscripts\AT-740-PD2_T4R00262.txt'
This Files result is stored in a MAT file with the command
save('myfiles.mat','Files')
and this result is continually repeated (to have a fast and up to date directory of what files are). Is there any way to do this faster?

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回答（2 个）

Oleg Komarov
Oleg Komarov 2011-8-2
Saving .mat files in '-v6' won't compress them and you will save time.
EDIT
save('myfiles.mat','Files','-v6')
  2 个评论
Darin McCoy
Darin McCoy 2011-8-2
I should have clarified - i would like to save time when loading these files. Is a MAT file the best choice? Are cells the best choice for storing?
Oleg Komarov
Oleg Komarov 2011-8-2
If you save with in '-v6' format when you load you will save time because no decompression is performed.
Mat file is a good choice. The size of the file matters.

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Walter Roberson
Walter Roberson 2011-8-2
Saving as text might be even faster.
MyFiles = regexp(fread('myfiles.txt'), '\n', 'split');
or
fid = fopen('myfiles.txt','rt');
MyFiles = textscan(fid,'%[^\n]');
fclose(fid);
or a number of other variations.
What you do might depend in part upon whether your file names are restricted to ASCII, or to UTF-16BE, or are general UTF-8 .

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