Reaching the array read from .txt file

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zoom
zoom 2013-7-21
I have a bunch of recorded data as an array on .txt file.
I'm reading the files and creating an array on matlab by following lines;
data = ['data' num2str(i) '.txt'];
load(data)
Now I just need to crop the array size. To do that I simply use the following code;
data0 = data0(100:1)
But I need to do that on multiple numbers of data in a for loop. The question is that after loading the "data" by load command, how can I reach this array, which will be named as "data0" after the first iteration.
  2 个评论
Azzi Abdelmalek
Azzi Abdelmalek 2013-7-21
编辑：Azzi Abdelmalek 2013-7-21
Zoom commented
I mean after loading the data by load(data) command, I have an array called data0 (this is in a for loop, so "data0" is created after the first iteration of the loop, then "data1" will be created so and so forth.) Now I need to crop this array collaed data0 since I'll be cropping all the arrays named data0, data1, data2... I need to do that in the same for loop as well. However I can't write
data0 = data0(1001:1)
because the in the next iteration data1 will be the array that I want to crop, So, instead I have to find a way like;
data = ['data' num2str(i) '.txt'];
load(data)
dummy = load(data) 'data' num2str(i) = dummy(1001:1)
here through load(data) command I create the data0 array and then assigning the same content to a dummy array and then assigning the cropped dummy to original data0. For sure there is nothing like the following line;
'data' num2str(i) = dummy(1001:1)
But what I'm looking is something doing that.

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回答（1 个）

Azzi Abdelmalek
Azzi Abdelmalek 2013-7-21
for k=1:n
filename=sprintf('data%d',k);
data=load(filename);
data0=data.(filename)
%do
end
  1 个评论
zoom
zoom 2013-7-21
That works to some extent.
filename=sprintf('data%d',k);
Allows me to get the name of the array that I'm interested in. But I can not load the array by using "filename", error message says there is no such file, even though I have an array named data1

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