MATLAB Programming Work Task: Write a MATLAB program for polynomial fitting Item: Excel file with the x and y data include Step: 1. Import the excel file with row-data, where row A for X-axis and row...

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Please write a MATLAB program for polynomial fitting, the row data are given with the excel file.


MATLAB Programming Work Task: Write a MATLAB program for polynomial fitting Item: Excel file with the x and y data include Step: 1. Import the excel file with row-data, where row A for X-axis and row B for Y-axis 2. Use MATLAB functions to extract the polynomial function of the curve Figure to plot: Equation to extract:   2 11 2 3 ... n np x p p x p x p x      A equation with an order of 20 is preferred, where n = 20. -5.00E-01 0.00E+00 5.00E-01 1.00E+00 1.50E+00 0 5 10 15 20 25 ID (A /m m ) VD(V)
Answered Same DaySep 28, 2021

Answer To: MATLAB Programming Work Task: Write a MATLAB program for polynomial fitting Item: Excel file with...

Rahul answered on Sep 28 2021
160 Votes
clc;
clear all;
% Import the Excel File
data = xlsread('polynomial-park50be.xlsx');
% Extract t
he x and y data
x = data(:,1);
y = data(:,2);
% Use polyfit with three outputs to fit polynomial using centering and scaling,
% Centering and scaling improves the numerical properties of the problem.
% polyfit...
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