Signal Processing onramp - Signal measurements. Answer incorrect even though the code is correct according to the solution.

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Kruthi.R
Kruthi.R 2023-9-14
评论： Renee Coetsee 2023-9-19
Why does it show an error when I have selected 't' for X-axis data. Please help.
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Renee Coetsee
Renee Coetsee 2023-9-15
Thank you for reporting this issue. This is a known bug and we are actively working on fixing it in the course.
In the meantime, the workaround for Task 4 to
  1. Click See Solution (left of the Submit button)
  2. Copy the entire solution from the solution script into the working script
  3. Submit Task 4
If that doesn't work, copy and paste the following code for Task 4:
% Find local maxima
maxIndices = islocalmax(pwr,"SamplePoints",t);
% Display results
figure
plot(t,pwr,"Color",[77 190 238]/255,"DisplayName","Input data")
hold on
% Plot local maxima
plot(t(maxIndices),pwr(maxIndices),"^","Color",[217 83 25]/255,...
"MarkerFaceColor",[217 83 25]/255,"DisplayName","Local maxima")
title("Number of extrema: " + nnz(maxIndices))
hold off
legend
xlabel("t")
Then in Task 5, Reset the script (left of the Submit button) and complete Task 5 normally.
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Renee Coetsee
Renee Coetsee 2023-9-19
This issue should now be fixed and you should not need to use the workaround to complete the task. Please comment if you are still having issues with this task!

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