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How do I import many excel files in MATLAB?

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JIN-HWA JEONG
JIN-HWA JEONG 2016-4-29
评论： John BG 2016-4-29
I use a code, like this. But Just 1 of 5 file is imported. I want to import 5 files.
source_dir = 'C:/Users/Cju/Documents/MATLAB/a/' ;
dest_dir = '/C:/Users/Cju/Documents/MATLAB/a' ;
source_files = dir(fullfile(source_dir, '*.xlsx'));
for i = 1:length(source_files)
data = xlsread(fullfile(source_dir, source_files(i).name));
xlswrite(fullfile(dest_dir, source_files(i).name));
end
  2 个评论
louis rassinfosse
louis rassinfosse 2016-4-29
编辑：louis rassinfosse 2016-4-29
I suppose only your last file is imported? That is because the name data, is the same for all 5 files..
Try:
-----------------------
For i=...
Data(i) =...
End
----------------------
(Not sure if it is '(i)' or {i}' but one should work )
John BG
John BG 2016-4-29
With your for loop writing the output of xlsread in exactly the same variable called 'data' you will not be able to read any other spreadsheet than the last one.
First build different variables, or a matrix the size you want to hold the data, fill it up with zeros if dealing with numeric, or build a basic cell that you can concatenate in the same for loop and then read with the for loop:
data={}
for k=1:N_files
[d1 d2 d3]=xlsread(...)
data=[data ; d3]
end
check your syntax of xlsread and xlswrite, the:
  • variables
  • worksheet page
  • cell ranges
are missing.

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回答（1 个）

louis rassinfosse
louis rassinfosse 2016-4-29
I suppose only your last file is imported? That is because the name data, is the same for all 5 files..
Try:
-----------------------
For i=...
Data(i) =...
End
----------------------
(Not sure if it is '(i)' or {i}' but one should work )

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