Saving each data from for loop

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helia mb
helia mb 2019-11-25
编辑： helia mb 2019-11-29
Hello, I have a for loop that count from 1 to 200 . And these 200 are number of my file that gonna read in matlab. I want to read each file and save it.but lenght of my files aren't same as each other.how can I save each of them?! Wgen I running my for loop it just save the last data.
if true
For i =1:200
Clc
Close all
Ss2 %my matrix are in there
Wanna save each of them
End
end
  2 个评论
Michal
Michal 2019-11-25
Hi, by 'how can I save each of them?!' do you mean saving the contents of the files in one variable? What are the contents of the files?
helia mb
helia mb 2019-11-25
Yes,they are series of numbers about 38×360000, but the column in each file are varied. When i load my for loop , it reads each of them but at the end i can see just the last matrix, that means other doesn't save in workspaces

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回答（1 个）

Philippe Lebel
Philippe Lebel 2019-11-25
编辑：Philippe Lebel 2019-11-25
If you want to store elements (like strings) that are not the same size you can use cells.
A = {'abc', 'defg', 'hijklmnop', 123, [4,5,6,7,8], false}
A =
'abc' 'defg' 'hijklmnop' [123] [1x5 double] [0]
So if you want to go through a bunch of files and put their content in a cell you can do it this way (pseudo code)
my_list_of_files= {'file1','file2', 'file3'}
my_array = {};
for i=1:length(my_list_of_files)
my_array{i} = read(my_list_of_files{i});
end
  12 个评论
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Stephen23
Stephen23 2019-11-29
"I don't know how to insert them in a cell array..."
N = number of files
C = cell(1,N);
for k = 1:N
... import your data
YourData = ... whatever
C{k} = YourData; % store your data in a cell array
end
"...plus my column data size aren't same as each other.during reading each file"
Is irrelevant if you are using a cell array.
helia mb
helia mb 2019-11-29
Yes exactly that's what I mean...oh my god Thank you so much~~ you are amazing

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