How to write a multi-line text data into a text file via MatLab script?

How to write a multi-line text data into a text file via MatLab script?

[Ans]

compose cmd and fprintf cmd.

[description]

remember that how to write single-line text data into a text file via MatLab script?

It’s quit simple. There are two ways.

First way:

use fopen to create a file identifier (fid)then use fwrite cmd to write s to fid.

More details on the following hyperlink.

[code]

filename=’test.txt’;

s=’Hello MatLab’;

fid=fopen(filename,’w’);

fwrite(fid,s);

fclose(fid);

Second way:

use fopen to create a file identifier (fid).

then use fprintf to write the s to fid with specified format.

More details on the following hyperlink.

[code]

filename=’test.txt’;

s=’Hello MatLab’;

fid=fopen(filename,’w’);

fprintf(fid,’%s’,s);

fclose(fid);

tran

[P.S.]

(1)fwrite v.s. fprintf

(1–1)fwrite can only be written with single line data.

fwrite can NOT be specified with specified format.

(1-2)fprintf can be written with multi-line data.

You must specify format in fprintf function.

And do you remember that compose string with compose function.

compose function can translate escape-character sequence.

More details on the following hyperlink.

Now, come back to multi-line data writting.

First, we can use compose function to translate it to multi-line strings.

Then, we create file identifier (fid) using fopen function.

Finally, we write mulit-line data using fprintf function.

[code]

clear clc filename=’test.txt’; fID=fopen(filename,’w’); s=”echo Hello\n:reckon\necho shit\n reckon”; s=compose(s); fprintf(fID,’%s\n’,s) fclose(fID);

[ref]

(1)fwrite

Write data to binary file — MATLAB fwrite — MathWorks Switzerland

(2)fprintf

From MatLab documentation.

Write data to text file — MATLAB fprintf — MathWorks Switzerland

From MatLab Answers. Thanks Walter Roberson gave me this idea.

write multiple line of text into a text file — (mathworks.com)

(3)compose

Format data into multiple strings — MATLAB compose — MathWorks Switzerland