How to store char to a text file?

Question

Mark Golberg 2022-10-21

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1832158-how-to-store-char-to-a-text-file

评论： Mathieu NOE 2022-10-24

采纳的回答： Mathieu NOE

Hello,

I have the input text I want to save into a *.txt file.

Please see an example is in the included mat file.

It looks like this:

-------------------------------------

val =

av Gain Corrected [[%]] --> 0.32795 (-Fail-)

av Non Gain Corrected [[%]] --> 0.11452

P0 [count] --> 0

P1 [count] --> 1.0643

P2 [count] --> -1.1197e-05

P3 [count] --> 6.5011e-10

P4 [count] --> -1.5386e-14

P5 [count] --> 1.2889e-19

-----------------------------------

How can I store this variable (only the bold test) into *.txt file, so it will maintain all the "next line" / special charachters, etc..

I've attached a required_output.txt (created by a simply copy-paste).

* I've tried several solutions suggested on the web, but each time something else is messed up... :(

** Using MATLAB 2015b (for legacy reasons, can't advance to any newer versions)

THANKS!!!

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Answer 1

Mathieu NOE 2022-10-21

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1832158-how-to-store-char-to-a-text-file#answer_1080493

在 MATLAB Online 中打开

input_text.mat

hello Mark

try this ; your char array must be first transformed in string , otherwise this code will not work

hope it helps

load('input_text.mat')
filename_out =   'output.txt';      
fid = fopen(filename_out, 'w' ); %// open file to writing
fprintf( fid, '%s\n', string(results_txt) ); %// print string to file
fclose( fid ); %// don't forget to close the file
disp(['File :' filename_out ' has been saved.']);
File :output.txt has been saved.
type('output.txt')
av Gain Corrected [[%]] --> 0.32795 (-Fail-)
av Non Gain Corrected [[%]] --> 0.11452     
P0 [count] --> 0                            
P1 [count] --> 1.0643                       
P2 [count] --> -1.1197e-05                  
P3 [count] --> 6.5011e-10                   
P4 [count] --> -1.5386e-14                  
P5 [count] --> 1.2889e-19                   