i have this two functions how can i plot them together
조회 수: 1 (최근 30일)
이전 댓글 표시
Length=100000
mu=10
sigma=1
X=sigma*randn(Length,1)+mu;
plot(X)
histogram(X)
grid on
n=100
[f,x]=hist(X,n)
bar(x,f/trapz(x,f));hold off;
g = (1/(sqrt(2*pi)*sigma))*exp(-((x-mu).^2)/(2*sigma^2))
plot(X,g) ;hold on ;grid on
can anyone help me please , i don't where is my mistake , my final output should look like the attached picture
댓글 수: 0
답변 (1개)
Brattv
2016년 4월 21일
Hi, Your problem is the last line plot(X,g). You are saying that you have a vector g with 100 point, that you want to plot versus a vector X with 100 000 points. Do the following
Use the histogram bin centers from "x" to find the first and last bin in the histogram. You wanted to plot a function with 100 points, which means that you find the step by finding the difference of the first and last bin and divide by 100.
if true
% Find the first and last valye
plotStep = (x(end) - x(1))/100;
% The steps put into a vector
lengthVect = x(1)+plotStep:plotStep:x(end);
% Plotting.
plot(lengthVect,g) ;hold on ;grid on
end
댓글 수: 0
참고 항목
카테고리
Help Center 및 File Exchange에서 Annotations에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!