how to remove the first 5 characters from a cell array 343x1 cell

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NU_YU
NU_YU 2015-10-27
评论： Leone Campos 2023-1-5
Hello all, I would like to remove the first few characters from every single cell (343), yet I am not much aware of how to do it. I tried to solve the problem via googling it yet could not find anything that would fit my case. The cell array is attached. Example: for "d035-117" for instance i would like to convert it into a form of "117". The first 5 characters need to be truncated. Thanks for your advices and help in advance!
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Image Analyst
Image Analyst 2022-12-7
@Jack you can see he accepted my answer below so I guess it worked for him.
If you have any more questions, then attach your data and code to read it in with the paperclip icon after you read this:
TUTORIAL: How to ask a question (on Answers) and get a fast answer

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采纳的回答

Image Analyst
Image Analyst 2015-10-27
How about (untested)
for k = 1 : length(ca)
cellContents = ca{k};
% Truncate and stick back into the cell
ca{k} = cellContents(6:end);
end
See FAQ: http://matlab.wikia.com/wiki/FAQ#What_is_a_cell_array.3F
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Supriya Gain
Supriya Gain 2022-5-18
I have a folder which contains 389 CSV files. And each CSV file has a dimension of 82x1. So basically it's a 1D matrix. Now the first element (i.e. A1) of every CSV file is 'VAR'. Now I want to remove this 'VAR' and shift my matrix to the upside. That means I want to remove A1 element and shift the whole matrix from A1. How to do that.
Image Analyst
Image Analyst 2022-5-18
@Supriya Gain try reading it into a table and deleting the first column
t = readtable(filename);
t = t(:, 2:end)
If that doesn't work, start a new question of your own (not here) and attach one of the CSV files there.

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更多回答（1 个）

Jos (10584)
Jos (10584) 2015-10-27
编辑：Jos (10584) 2015-10-27
If A is your cell-array of strings, this oneliner will do the job:
B = cellfun(@(x) x(1:end-5), A, 'un', 0)
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NU_YU
NU_YU 2015-10-27
Hi Jos,
I am not good at in matlab, so i sound dumb for sure. I did what you had suggested and it worked for the first 3 characters, not for the last 3. i substituted it with x(6:9), but it gace me an error. anyhow, thanks! I will try to solve it somehow. much appreciated

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