Halo, i have asked about the same thing before and also i have searched for the solution on Google but still havent found it yet. I have some 117*1 data. Time, x, and y. I make plot for time-x and time-y. So i get two plots and also two trendlines which i get from polyfit. Now im so confused about how to combine these trendlines until i get the intersection and calculate the angle between them. Let's say time=z, x=x, and y=y. So then the plots are z-x and z-y. My teacher told me to look for a solution if z-x and z-y become x-y. Do i need to do some rotation and tranformation? Please help me. Thankyouu.
aa=polyfit(time,x,1); bb=polyval(aa,time); figure plot(time,x) hold on plot(time,bb) cc=polyfit(time,y,1); dd=polyval(cc,time); figure plot(time,y) hold on plot(time,dd)
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