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Osnofa
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Linear Regression - how to incorporate in figure

Asked by Osnofa
on 16 Jul 2019
Latest activity Commented on by KSSV
on 16 Jul 2019
Hello,
I have the following data:
x=[1 2 5 9 4 10 11 2 6]
y=[5 3 6 8 5 12 14 4 8]
I need to obtain a figure with:
  1. plot x y
  2. linear regression - y=mx+b
  3. Legend with linear regression equation y=mx+b
  4. R square value
But still have not managed to achieve points 3 and 4.
thanks

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1 Answer

Answer by KSSV
on 16 Jul 2019

Read about plotregression
x=[1 2 5 9 4 10 11 2 6] ;
y=[5 3 6 8 5 12 14 4 8] ;
plotregression(x,y);

  2 Comments

Is it possible to increase resolution of m and b values? m has 2 digits after decimal point while b only has 1 which is inconsistent and insuficient.
It works but it is not quite what I was looking for. I was looking for something as excel provides:
sample_figure.PNG
nevertheless, thank you.
KSSV
on 16 Jul 2019
p = polyfit(x,y,1)

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