Modifying values in matrix

2021 2 1
1 个回答
更新时间：2025 4 28
6 次查看（30 天）

1 个投票

Write a MATLAB code that modifies the values in MockMatrix using the following conditions:
  1. A nested for loop must be used
  2. Replace values between 100 and 200 (inclusive) with 100
  3. Replace values between 600 and 700 (inclusive) with 600
Determine the sum of all the values in this new modified matrix. Use fprintf('%16.0f', total) to print all of the digits.
i've attached the data here. thank you.

4 个评论
显示 2更早的评论 隐藏 2更早的评论

Geoff Hayes
Geoff Hayes 2021-2-1
Batrisyia - this seems like homework, so please show us the code that you have written to attempt solving the question. If there is something in particular that you are having trouble with, then please post that as a question within this thread.
y = importdata('mock_Q3file.txt');
num_rows=size(y,1);
num_cols=size(y,2);
for i=1:num_rows
for j=1:num_cols
if (y(i,j)>=100 && y(i,j)<=200)
y(i,j)=100;
elseif (y(i,j)>=600 && y(i,j)<=700)
y(i,j)=600;
end
end
end
this is what i've done so far. How do i get the sum of all the values in the modified matrix?

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Abhishek
Abhishek 2025-4-28

0 个投票

Hi @Batrisyia Mohamad Asri,
To perform the required operations and get the sum of all the values in the modified matrix, you can make use of the “sum()” method.
Here is the step-by-step process:
  1. Import the file into a matrix.
y = importdata('mock_Q3file.txt');
2. Use the loops to iterate through each element and apply the replacements as required.
3. After modifying the matrix, calculate the sum of all elements using the following:
total = sum(y(:));
4. Print the results.
Please refer to the documentations for more details:
Hope this helps.

类别

在 帮助中心 和 File Exchange 中查找有关 MATLAB 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by