How to display the data points on my graph?

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Cheng-Han Yang
Cheng-Han Yang am 21 Mär. 2019
Beantwortet: Kelly Kearney am 21 Mär. 2019
filename='data3.txt';
headlines=0;
delim='\t';
B=importdata(filename,delim,headlines);
t=B(:,1);
y=B(:,2);
fun = @(x,t)x(1)*t.^3 + x(2)*t +6;
x0=[1 1];
x=lsqcurvefit(fun, x0, t, y);
scatter(t,y);
fprintf('Function fitted is y = %5.3f x^3 + %5.3f x + 6\n', x(1), x(2));
fplot(@(t)x(1)*t.^3 + x(2)*t +6, [B(1,1) B(10,1)]);
The above is my code. The scatter command works as usual when I get rid of the fplot command, but fplot seems to overwrite the scatter part and does not show me the data points anymore.
Thanks in advance.

Akzeptierte Antwort

Kelly Kearney
Kelly Kearney am 21 Mär. 2019
Add a hold after your scatter plot:
scatter(rand(10,1), rand(10,1));
hold on
fplot(@(x) x, [0 1])

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