Check if Heart Rate improved

Write a function that returns the # of patients that saw improvement. The heart rates are passed in a vectors; Before is the vector of heart rates at the start of the trial, and After is the corresponding heart rates of the same patients at the end of the trial. For example, if Before = [82, 79, 86, 75] and After = [78, 73, 74, 75], your function should return 3 since 3 patients saw improvement.

Here is code given

function improved = AnalyzeHeartRates(Before, After)

end

Finish the code

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You finish the code!

Answer 1

[Image Analyst]

Hint: Read this: http://www.mathworks.com/matlabcentral/answers/8626-how-do-i-get-help-on-homework-questions-on-matlab-answers

Another hint: Run this code and understand what is going on it in when comparing the 2 vectors:

hr1 = randi(100, 1, 4)
hr2 = randi(100, 1, 4)
hr2LessThanhr1 = hr2 < hr1

Also, MATLAB has many built in functions for things like sum(), min(), max(), diff(), setdiff(), any(), all(), etc. etc. You should at least learn some of the most commonly used ones.