Plotting four lines in each of three subplots but only the last line is showing up

Question

Zeke Merchant 2015-6-8

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/222997-plotting-four-lines-in-each-of-three-subplots-but-only-the-last-line-is-showing-up

回答： Walter Roberson 2015-6-8

Summary: Ive got a [3x1] subplot structure. Trying to plot four lines on each plot. Subplot 1 plots just fine. For some reason the last two are only plotting the last of the four lines. Why isn't hold on working?

Code:

if true
  % code
% Change directory
directory = pwd;
posdir = strcat(directory,'\Pos');
cd(posdir);
files = dir(posdir);
% Read in files
% Trial # 9, under threshhold, correct detect
filename1 = files(3).name;
[hip1,txt,raw] = xlsread(filename1,'Q:Q');
[shoulder1,txt,raw] = xlsread(filename1,'AS:AS');
[head1,txt,raw] = xlsread(filename1,'BU:BU');
% Trial 11, at threshhold, correct detect
filename2 = files(4).name;
[hip2,txt,raw] = xlsread(filename2,'Q:Q');
[shoulder2,txt,raw] = xlsread(filename1,'AS:AS');
[head2,txt,raw] = xlsread(filename1,'BU:BU');
% Trial 21, at threshhold, incorrect detect
filename3 = files(5).name;
[hip3,txt,raw] = xlsread(filename3,'Q:Q');
[shoulder3,txt,raw] = xlsread(filename1,'AS:AS');
[head3,txt,raw] = xlsread(filename1,'BU:BU');
% Trial 32, over threshhold, correct detect
filename4 = files(6).name;
[hip4,txt,raw] = xlsread(filename4,'Q:Q');
[shoulder4,txt,raw] = xlsread(filename1,'AS:AS');
[head4,txt,raw] = xlsread(filename1,'BU:BU');
% Subtract mean
x1 = (1:1:length(hip1))/250;
hip1 = (hip1 - mean(hip1));
hip2 = (hip2 - mean(hip2));
hip3 = (hip3 - mean(hip3));
hip4 = (hip4 - mean(hip4));
shoulder1 = (shoulder1 - mean(shoulder1));
shoulder2 = (shoulder2 - mean(shoulder2));
shoulder3 = (shoulder3 - mean(shoulder3));
shoulder4 = (shoulder4 - mean(shoulder4));
head1 = (head1 - mean(head1));
head2 = (head2 - mean(head2));
head3 = (head3 - mean(head3));
head4 = (head4 - mean(head4));
% Plot the data
figure(1)
clf(1)
grid on
sub1 = subplot(3,1,1);
hold on
plot(x1,hip1,'r');
plot(x1,hip2,'b');
plot(x1,hip3,'k');
plot(x1,hip4,'g');
xlabel('Time [seconds]');
ylabel('Displacement [mm]');
title('Vicon Hip Movement');
sub2 = subplot(3,1,2);
plot(x1,shoulder1,'r');
hold on
plot(x1,shoulder2,'b');
plot(x1,shoulder3,'k');
plot(x1,shoulder4,'g');
xlabel('Time [seconds]');
ylabel('Displacement [mm]');
title('Vicon Shoulder Movement');
sub3 = subplot(3,1,3);
plot(x1,head1,'r');
hold on
plot(x1,head2,'b');
plot(x1,head3,'k');
plot(x1,head4,'g');
xlabel('Time [seconds]');
ylabel('Displacement [mm]');
title('Vicon Head Movement');
legend('T09BET','T11ATC','T22ATI','T32ABT','Location','Best');
cd(directory);
end

3 个评论
显示 1更早的评论隐藏 1更早的评论

Zeke Merchant 2015-6-8

Yes, the data loads in fine. I can see them all in the workspace with proper dimensions. They can all be plotted as well.

Walter Roberson 2015-6-8

I recommend Parent'ing all of your graphics calls http://uk.mathworks.com/matlabcentral/answers/22208-show-figure

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Walter Roberson 2015-6-8

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/222997-plotting-four-lines-in-each-of-three-subplots-but-only-the-last-line-is-showing-up#answer_182026

If only one line shows up it could be that the data you are plotting for each of the lines is close enough that the lines are on top of each other at that scale.