Sum of a function into a new file

Please help me with this assignment!!

"Create a file called data1 by using the Matlab editor. For instance,

23

56

18

6

7

43

Write a Matlab script that reads data1, calculates the sum of its records sum1, and writes sum1 to the file called result."

Here is what I have so far, I am stuck on finding the sum and writing the sum into a file.

data1.m:

clc,clear

x = [23 56 18 6 7 43];

fid = fopen('rabFile.txt','w');

fprintf(fid,'%5.2g\n',x);

fclose(fid);

assignment_19.m:

fid = fopen('rabFile.txt','r');

if fid == -2

disp('Error opening file');

else

arr = fscanf(fid,'%g',[1 Inf]);

end

fclose(fid);

rabFile.txt:

23

56

18

6

7

43

[Rik]

Your assignment has 3 parts. Which part do you have trouble with?

[Claire Crowe]

I am stuggling with calculating the sum of the data and writing that sum to a new file called result.

[Walter Roberson]

you should be testing fid less than 0 rather than equal -2 by the way.

[Rik]

You are writing data to a file in that first part of your code, so you know how to write data to a file.

If you search on Google for 'calculate sum Matlab' I expect the function you need will be the top result.

Answer 1

[Srivardhan Gadila]

In addition to the suggestions in the comments, you can refer to the documentation of sum function.