plot and colored symbols.
Calculate the linear regression using polyfit,
and plot the regression line in the
same graph. Add title and labels, and export
the graphic to a file suitable for inclusion
in a text document.
| x | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| y | -3.1 | -0.7 | 1.8 | 4.1 | 6.2 | 8.9 | 11.3 | 13.5 | 16 | 18.3 |
Solution:
>> x=0:9;
>> y=[-3.1,-0.7,1.8,4.1,6.2,8.9,11.3,13.5,16,18.3];
>> plot(x,y,"+r") % Symbol: o,x,+,*
>> hold
Current plot held.
>> plot(x,polyval(polyfit(x,y,1),x)) % Regression
>> xlabel("x-Achse")
>> ylabel("y-Achse")
>> title("Beispielgraph")
>> print("graph.eps") % not Applet or Midlet!
