Hello, I am trying to run this program and plot the prediction line "y" over the scatterplot of age and ulna data points. However, the prediction line results with "doubling back" sections. Any suggestions as to fixing this so that the prediction line is smooth?
%Program Hollingrsquaredulna.m
%Load data
load ulnaestimation.txt;data = ulnaestimation;age = data(:,1);ulna = data(:,2);%Set parameters
a = 24.18358006;b = 1.214523208;K = 13.94615385;y = (((K-b)*(age.^2))./((a.^2)+(age.^2)))+b;%Compute RSS
residuals = sqrt(ulna) - sqrt(y);squareresiduals = residuals.^2;RSS = sum(squareresiduals);%Compute denominator
residuald = sqrt(ulna) - mean(sqrt(ulna));squareresiduald = residuald.^2;denominator = sum(squareresiduald);%Compute rsquared
rsquared = 1 - (RSS/denominator)%Set parameters and compute AIC
q = length(age);variance = RSS/q;k = 3;AIC = (q*log(variance))+2*kscatter(age,ulna)hold onplot(age,y)
Any help is greatly appreciated!!
Best Answer