# How to plot points on a graph using for loop?

조회 수: 1 (최근 30일)
Hunter Nau 2022년 5월 5일
댓글: Rik 2022년 5월 9일
I am working on a project, and I am trying to graph an ascent rate where the y axis is feet and the x axis is minutes. I want it to plot a point every minute, where it increases 2000 feet per minute until the cruising altitude. I have to use a for loop, and so far I have got it to plot the points on the y axis but not the x axis. This is also based off of a GUI, so the numbers below are able to be changed. sa= starting altitude, A1=crusing altitude, ar=ascent rate, FS=font size
sa=0;
elevation=525;
A1=30000;
minutes=135;
x=elevation:2000:A1;
for i=1:length(x)
ar(i)=sa+x(i);
end
FS=12;
%axes(handles.timevsheight);
plot(0,ar,1,ar,'-o r','linewidth',2);
xlabel('Time (Minutes)','Interpreter','latex','FontSize',FS);
ylabel('Height (Feet)','Interpreter','latex','FontSize',FS);
xlim([0 minutes+5])
ylim([0 A1+1000])
title('Time vs Height')
##### 댓글 수: 1이전 댓글 -1개 표시이전 댓글 -1개 숨기기
Rik 2022년 5월 9일
Based on your labels you want to plot the altitude versus time. Have you tried creating vectors with paired data? Because that is what you will need in the end: pairs of altitude and time. I don't fully understand what you're doing in your code to be able to tell you what exactly you should change to get what you need.

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### 답변 (1개)

Mahmoud Ashraf 2022년 5월 5일
편집: Mahmoud Ashraf 2022년 5월 5일
sa=0;
elevation=525;
A1=30000;
minutes=135;
x=elevation:2000:A1;
for i=1:length(x)
ar(i)=sa+x(i);
end
FS=12;
%axes(handles.timevsheight);
plot(0,ar,'-o r','linewidth',2);
xlabel('Time (Minutes)','Interpreter','latex','FontSize',FS);
ylabel('Height (Feet)','Interpreter','latex','FontSize',FS);
xlim([0 minutes+5])
ylim([0 A1+1000])
title('Time vs Height')
##### 댓글 수: 4이전 댓글 2개 표시이전 댓글 2개 숨기기
Hunter Nau 2022년 5월 5일
I need the x value to increase by one everytime instead of it being a straight line. (0,525) (1,2525)(2,4525)etc
Mahmoud Ashraf 2022년 5월 5일
use scatter (x,y) instead of plot

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