清空筛选条件
清空筛选条件

Sorting problem with months in file names, while taking average

5 次查看（过去 30 天）
Venkata
Venkata 2018-10-16
评论： Venkata 2018-10-17
When I read the file names from a selected directory, the names are coming out to be like the following:
I tried
folder_path=uigetdir;
cd(folder_path)
flist=dir('*.dat');
flist.name gives
A01-Apr-2014.dat
A01-Apr-2015.dat
A01-Apr-2016.dat
A01-Aug-2014.dat
A01-Aug-2015.dat
A01-Aug-2016.dat
A01-Dec-2014.dat
A01-Dec-2015.dat
A01-Dec-2016.dat
....
Is there a way in MATLAB to read and access the file names in the actual month order?
E.g:
A01-Jan-2014.dat
A01-Feb-2014.dat
A01-Mar-2014.dat
A01-Apr-2014.dat
...
A01-Jan-2015.dat
A01-Feb-2015.dat
A01-Mar-2015.dat
....
Then, taking hourly averages from each month and writing the entire average values in a single file would be easy and flawless.
Thank you.

请先登录，再回答此问题。

采纳的回答

Stephen23
Stephen23 2018-10-16
编辑：Stephen23 2018-10-16
Two solutions:
1) Use ISO 8601 dates in the filenames, then they can be sorted using a trivial character sort.
2) Convert those dates to date numbers, sort them, and then apply those indices to the filenames. Like this:
C = {flist.name};
V = datenum(C,'Add-mmm-yyyy.dat');
[~,idx] = sort(V); % sort the date numbers.
C = C(idx); %sort the filenames into date order.
for k = 1:numel(C)
C{k} % filename
...
end
  13 个评论
显示 11更早的评论
Stephen23
Stephen23 2018-10-17
编辑：Stephen23 2018-10-17
@Venkata: here are two solutions:
1) use format '%g', e.g. '%10.5g', or something similar.
2) write the file using fprintf and define your own format string.
Read the fprintf help to know how to define dlmwrite's precision format string, and of course the fprintf format string.
Venkata
Venkata 2018-10-17
@Stephen: Thanks a ton for your help and time.
Sure, I did mark it as accepted answer and voted too :).
I make sure that, I properly acknowledge and respect the people who helped me in my tough time, especially.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Text Files 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