simple array calculation help

Question

Mahesh Sadupalli 2021-4-23

0
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https://ww2.mathworks.cn/matlabcentral/answers/810605-simple-array-calculation-help

回答： Cris LaPierre 2021-4-23

Write a program that will smooth an array of data using an exponential moving average. For the input data we assume a row vector with 𝑁 elements. We use the following expression for the average: Xavg,𝑘 = 𝛼X(𝑎v,𝑘−1) + (1 − 𝛼) ⋅ X𝑘, except for 𝑘 = 1, where X𝑎vg,1 = X1. You can use the following statement (for MATLAB) to create a row vector of data with noise from a normal distribution with a mean of 5.0 and a standard deviation of 3.0 to test your program:

1) inputData = 5.0 + 3.0 ∗ 𝑟andn(1,100);

2) 𝛼= 0.8

Please use only basic operators like assignment, comparison, conditional statement, and loops. Do not use built in functions or advanced possibilities of a specific programming language (e.g. vectorization in MATLAB).