Sum of numbers from a text file

7 views (last 30 days)
I have a text file with 288 rows. I want to add the values of 6 in 6 lines. For example:
1,00
1,00
1,00
0,89
1,00
1,00
1,00
1,00
1,00
0,22
0,03
0,00
0,86
1,00
1,00
1,00
1,00
1,00
1,00
1,00
1,00
1,00
1,00
1,00
1,00
1,00
0,44
0,08
0,14
0,00
0,00
0,44
1,00
0,03
0,97
1,00
...
I want to add 1,00 1,00 0,89 1,00 1,00 1,00 and put the result in a row. Then add the next 6 numbers and place in the same file as above, but now on the line below. How can I do this?

Accepted Answer

Ameer Hamza
Ameer Hamza on 1 Apr 2020
Try this. Here test.txt is the name of your file. This code will create a new file and save the sums in it.
data = fileread('test.txt');
data = strrep(data, ',', '.');
num_data = sscanf(data, '%f\n');
sum_6 = sum(reshape(num_data, 6, []), 1)';
f = fopen('new_file.txt', 'w');
fprintf(f, '%1.2f\n', sum_6);
fclose(f);
  3 Comments
Ameer Hamza
Ameer Hamza on 1 Apr 2020
Glad to be of help.
Image Analyst
Image Analyst on 1 Apr 2020
Amanda, can you go ahead and accept this answer?
By the way, there are lots of ways to read in numbers, such as importdata(), dlmread(), csvread(), readmatrix(), load(), etc.

Sign in to comment.

More Answers (0)

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!