How I can read notbad file Line by Line?

I saved matrices in text file line by line and now I want to read these matrices in same way that I saved?

[Geoff Hayes]

Ameligege - what is the code that you used to save the data to file?

[Ameligege]

dlmwrite('Features.txt',reshapemat,'-append', 'newline', 'pc');

Answer 1

[Image Analyst]

Try dlmread(), csvread(), importdata(), fgetl(), textscan(), or readtable(). Lots of ways to do it. Examples are in the help. Just pick one or two and give it a try. In the event someone did want to do it for you, you didn't attach your file, so they can't.

[Jan]

And fscanf.

[Image Analyst]

So you used dlmwrite() to write it out

dlmwrite('Features.txt',reshapemat,'-append', 'newline', 'pc');

but dlmread() is not working? What is your code for dlmread()?

[Ameligege]

I used dlmread() as follwing

dlmread('Features.txt') but the result is not identical to the text file for example In the notebad file here is one of the values 407.66 but the output is 0.4077 what is the reason?

[Image Analyst]

Well, what can I say if you're not willing to attach your file? Just keep working on it, or call the Mathworks on Monday for help. It looks like somewhere you're dividing the array by 100. Are you sure it's not just being displayed in scientific notation?

[Ameligege]

How can I send it in private way??????

[Image Analyst]

Why does it need to be private? It's just numbers. If there are secret words in some column headers, just change them, and then upload it here.

[Ameligege]

Here is the file .

[Image Analyst]

OK, so the first number in the file is 377. Was that the value in MATLAB before you created the file? And what number do you get after calling dlmread()? 377 or 0.377?

[Ameligege]

I extract these values from image,so I can not check the value

when I called dlmread() this what I get 0.3775

[Image Analyst]

I can't reproduce:

m = dlmread('features.txt');
m(1, 2)  % Print second number on first row to command line.

In the command window, it shows:

ans =
   377.46

It works just fine for me. There's something you're not showing or telling me, like you're using im2double() or dividing by 100 or something.

[Ameligege]

Here are all my steps

1-Read Images

2-Apply Filter function after convert the image using im2double()

3-convert it to black and white

4-Apply DWT

5-Apply kraskuallwallis

6-reshape the result to save it in notbad file row by row

7-write the reult to notbad file

That all what I did before I saved the result in notbad file I can send the code but in private.

[Image Analyst]

Right before step 7 (dlmwrite), do this:

save('myarray.mat', 'reshapemat');
dlmwrite('Features.txt',reshapemat,'-append', 'newline', 'pc');

Then attach myarray.mat back here so we can look at it.

[Ameligege]

Here is

[Image Analyst]

This has totally different numbers than your first example (311 is not the first number anymore) so that means you're also going to have to attach the features.txt file that has the same numbers. Please hurry as I'm planning on leaving for some errands soon.

[Ameligege]

here is

[Ameligege]

how i can display the content of myarray

[Ameligege]

311 is already the first element in the text file

[Image Analyst]

Here is the code I used:

s=load('myarray.mat')
m = s.reshapemat;

Then examine m with the variable editor. And you attached the same features.txt as before. It totally does not match your reshapemat in the slightest.

[Ameligege]

Look :( I had to use this function reshapemat=reshape(features, 1, []);

to save the result matrix in one line.

because I want to save each matrix in one line like the notbad that I sent

If you have another way to do the same thing ,please tell me?

Thank you for the sincere help ,I appreciate you for your time and your effort