My plot is not showing the points
조회 수: 55 (최근 30일)
이전 댓글 표시
I'm trying to write a code and it looks like this:
load ('CT_calibration_numbers.mat')
[a b] = size(CT_calibration.artery);
for i=[1:a]
x = [950 1000 1050 1059]';
y = [CT_calibration.adipose(i,1) CT_calibration.bladder(i,1) CT_calibration.gluteus(i,1)...
CT_calibration.artery(i,1)]';
[curve] = fit(x,y,'poly1');
figure
hold all
y2=curve.p1*x + curve.p2;
plot(x,y2)
xlabel('Density [g/cm^3]');
ylabel('CT Number [HU]');
axis([900 1080 900 1150]);
str = ['y = ',num2str(curve.p1),'*HU + ',num2str(curve.p2)];
text(1000, 960, str) % tells matlab where to put the equation
end
the problem is that when I run the code, the graph is plotted with the linear regression but the points are not shown in the graph.
I would much appreciate if anyone has any tips of how to get this sorted.
Kind Regards,
Leticia Campello
채택된 답변
John D'Errico
2018년 2월 8일
Are you saying the original points are not shown on the plot? Of course they are not, since you never plotted them!
You could add a line in there:
plot(x,y,'o')
which would plot the original points.
댓글 수: 0
추가 답변 (0개)
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!