Linear Regression - how to incorporate in figure

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

I've seen this question: https://www.mathworks.com/matlabcentral/answers/38194-linear-regression

But still have not managed to achieve points 3 and 4.

thanks

Answer 1

[KSSV]

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);

[Osnofa]

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:

nevertheless, thank you.

[KSSV]

p = polyfit(x,y,1)