Sum of a function into a new file

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Claire Crowe 2020-10-21

回答： Srivardhan Gadila 2020-10-27

Please help me with this assignment!!

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

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:

Walter Roberson 2020-10-21

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

Rik 2020-10-22

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.

Srivardhan Gadila 2020-10-27

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

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