Split binary number into individual bytes

Hello,

I want to convert a list of binary numbers into 3 different numbers. Each binary number is of 21 bits and I want to convert it into 3 sets of [22:12 11:1 0].

Example is shown below.

00111001110101000101011 => 00111001110 10100010101 1

Below is a sample of the file

00111001110101000101011

00111001110101000101001

00111001110101000100111

00111001110101000100101

00111001101101000100011

00111001101101000100001

00111001101101000011111

00111001101101000011101

00111001101101000011011

00111001101101000011001

I have used the following approach but to no avail as it keeps reading data in double format.

close all 
clear all
clc

load D:\Folder\File.txt
dataorig=File;
N=length(dataorig)
finalMat=ones(N,3);

datastr=string(dataorig);

temp=char(datastr(1))
num1=temp(1:11)

Answer 1

[Alex Mcaulley]

This approach save the result in a cell array:

fid = fopen('File.txt');
data = textscan(fid,'%s');
fclose(fid);
dataNew = cellfun(@myfun,data{1,1},'UniformOutput',false);
dataNew = vertcat(dataNew{:});

%To save in a new file
fid = fopen('example.txt','w');
dataNew = dataNew';
fprintf(fid,'%s\t%s\t%s\r\n',dataNew{:});
fclose(fid);

function b = myfun(a)
    a = flip(a);
    b = {a(1:11),a(12:22),a(end)};
end

[Usman Siddique]

I have run the your code bt i cant seem to find any outputs

Can you please explain what have you done in the 4th line of code i.e.

dataNew = cellfun(@myfun,data{1,1},'UniformOutput',false);

Also, shouldn't the function "myfun" be a separate file.

[Alex Mcaulley]

Can you upload your txt file? Are you getting any error? This code works for me just putting your sample in a txt file.

dataNew = cellfun(@myfun,data{1,1},'UniformOutput',false); %This line executes the function myfun for each row of your txt file and save the results in a cell array

The function myfun should be defined at the end of your function/script

[Usman Siddique]

I have run the code. As you mentioned it saves the result in a cell. The problem is I cant seem to view it as text in the command window. It displays "{1×3 cell}" for every ith row.

Is there any way to store the results in a separate text file?

[Alex Mcaulley]

To see the result in the command window, just use:

dataNew = vertcat(dataNew{:})

To write the result in a new txt file:

fid = fopen('example.txt','w');
dataNew = dataNew';
fprintf(fid,'%s\t%s\t%s\r\n',dataNew{:});
fclose(fid);

I have edited my first answer to show the full code