How to convert a text file to 0's and 1's

Question

Hasan Bazzoun 2020-8-1

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/573916-how-to-convert-a-text-file-to-0-s-and-1-s

编辑： Rik 2020-8-2

Hello

I've been trying during that past days to convert a text file that contains strings into 0's and 1's .

The file can be read using the fileread command, but the knot is, how can the file be converted to a 0's and 1's matrix in matlab ?!!

Example of the data:

T T1 T2 T3 T4 T5

r Soda-bottle White-Bread Oat-Meal Milk-organic Milk

r Bagles Croissants Soda-bottle Orange-Juice

r White-Bread

r Orange-Juice White-Bread Bagles Apple-Juice Milk

r Croissants Milk-organic Baguette Soda-bottle

r Milk Coffee

r Bread Beer-can

where not all the columns are filled, as for the above data the first line has all 1's for the 5 different customers and the second line has 4 1's and a 0 .

How can this be acheived using matlab ?

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Answer 1

Rik 2020-8-1

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/573916-how-to-convert-a-text-file-to-0-s-and-1-s#answer_473932

编辑：Rik 2020-8-2

在 MATLAB Online 中打开

data 250.txt

If you have a master-list you can use ismember to create a logical vector line by line. If you need an example, you should post the list of items.

Edit:

Since apparently you want to more or less count the number of items, this code should do the trick.

You can install the readfile function through the addon manager, or get it from the FEX here. Alternatively, you can read the file with your own code and put each line in a cell: strsplit(data,'\n') should get you there.

data=readfile('https://www.mathworks.com/matlabcentral/answers/uploaded_files/340423/data%20250.txt');
data(1)=[];%remove header line
output=false(numel(data),5);
for n=1:numel(data)
    tmp=strsplit(data{n});
    tmp=~cellfun(@isempty,tmp);
    tmp(1)=[];%remove 'r'
    output(n,1:numel(tmp))=tmp;
end