Try something like this
str = fileread('data.txt');
data = textscan(str, '%x')
data.txt used in my code is attached.
Convert a .txt file into .mat fiie in MATLAB.
4 次查看（过去 30 天）
显示 更早的评论
Dear Members I am new to MATLAB.
I have one .txt file containg information in hex format as given below:
1234ABC6789D
AB456C78DEF
......
Like this almost 1000 values are there.
I want to write it in matrix format in matlab.
So can someone please explain how to convert this .txt file into .mat file
回答（1 个）
Ameer Hamza
2020-11-7
编辑：Ameer Hamza
2020-11-7
21 个评论
Dhruv Bhatnagar
2020-11-7
@Ameer Hamza Thanks for your reply. But it is giving string file in one cell. I want in each cell one one value.
Example: If my txt value contain first value as 89CD7632EFAB1054
Output Required:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
8 9 12 13 7 6 3 2 14 15 10 11 1 0 5 4
Ameer Hamza
2020-11-7
编辑：Ameer Hamza
2020-11-7
Are you looking for something like this?
str = strsplit(fileread('data.txt'), '\n');
data = cellfun(@(x) textscan(x, '%1x'), str)
Dhruv Bhatnagar
2020-11-7
Thanks for your quick reply sir
But it is giving error and output is also coming in two cells only like this
1 2
1234ABC6789D AB456C78DEF
I want every bit in each cell such that it would be 2row 16 columns came 2x12 .mat file.
Ex: I want output in this format:
Ameer Hamza
2020-11-8
But you only have 15 characters in 2nd line. In MATLAB, to create a matrix, all rows must have an equal length.
Dhruv Bhatnagar
2020-11-8
No no you took me wrong . Sorry its my mistake I didnot paid attention to your input length.
All rows are of equal length from 1 to 16 bit long like this:
89CD7632EFAB1054
64135720B9CE8AFD
059C36AF72EB41D8
79B568A43DF12CE0
9C638D7250AF41BE
16CB34E9528F70AD
B649E31CD02F857A
906FB24D7E815CA3
9A03DE4721B865FC
17536024BDF9CA8E
Ameer Hamza
2020-11-8
In that case try this
str = fileread('data.txt');
data = textscan(str, '%1x');
data = reshape(data{1}, 16, []).'
Result
>> data
data =
10×16 uint64 matrix
8 9 12 13 7 6 3 2 14 15 10 11 1 0 5 4
6 4 1 3 5 7 2 0 11 9 12 14 8 10 15 13
0 5 9 12 3 6 10 15 7 2 14 11 4 1 13 8
7 9 11 5 6 8 10 4 3 13 15 1 2 12 14 0
9 12 6 3 8 13 7 2 5 0 10 15 4 1 11 14
1 6 12 11 3 4 14 9 5 2 8 15 7 0 10 13
11 6 4 9 14 3 1 12 13 0 2 15 8 5 7 10
9 0 6 15 11 2 4 13 7 14 8 1 5 12 10 3
9 10 0 3 13 14 4 7 2 1 11 8 6 5 15 12
1 7 5 3 6 0 2 4 11 13 15 9 12 10 8 14
Ameer Hamza
2020-11-8
Dhruv Bhatnagar's comment posted as answer moved here:
This error is coming:
Error using textscan
Unable to parse the format character vector at position 1 ==> %1x
Unsupported format specifier '%x'. See the documentation for TEXTSCAN for supported formats.
Error in trial_1 (line 2)
data = textscan(str, '%1x');
Ameer Hamza
2020-11-8
Try this code. This should work in R2017b
str = replace(fileread('data.txt'), {newline ' '}, '');
data = reshape(hex2dec(str(:)), 16, []).'
Dhruv Bhatnagar
2020-11-9
Actually whatever output I am getting of 1000x16 matrix I want to save it that in one text file.
How to do that.
Ameer Hamza
2020-11-11
Dhruv's answer moved here
using writematrix output is saving in below format in text file:
1,5,6,13,15,12,3,2,1,0,11,10,7,8,9
But I want to save the output in text file in this format:
1 5 6 D F C 3 2 1 0 B 10 7 8 9
How can I modify this?
Ameer Hamza
2020-11-11
You can do it like this
x = [1,5,6,13,15,12,3,2,1,0,11,10,7,8,9];
f = fopen('data.txt', 'w');
fprintf(f, '%x ', x);
fclose(f);
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Data Type Conversion 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!发生错误
由于页面发生更改，无法完成操作。请重新加载页面以查看其更新后的状态。
Translated by 
您也可以从以下列表中选择网站：
如何获得最佳网站性能
选择中国网站（中文或英文）以获得最佳网站性能。其他 MathWorks 国家/地区网站并未针对您所在位置的访问进行优化。
美洲
- América Latina (Español)
- Canada (English)
- United States (English)
欧洲
- Belgium (English)
- Denmark (English)
- Deutschland (Deutsch)
- España (Español)
- Finland (English)
- France (Français)
- Ireland (English)
- Italia (Italiano)
- Luxembourg (English)
- Netherlands (English)
- Norway (English)
- Österreich (Deutsch)
- Portugal (English)
- Sweden (English)
- Switzerland
- United Kingdom(English)
亚太
- Australia (English)
- India (English)
- New Zealand (English)
- 中国
- 日本Japanese (日本語)
- 한국Korean (한국어)