Plot X, Y, Z axes with respect to time

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Navin Johnson 2022-3-20

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https://ww2.mathworks.cn/matlabcentral/answers/1676114-plot-x-y-z-axes-with-respect-to-time

评论： Voss 2022-3-21

So I have a file which contains the accelerometer values of a phone. The CSV file contains time, x, y and z columns. I am trying to find a way to plot the 3 axes (x, y and z) vs. time into one graph rather than using 'stackedplot'. How would one go about this?

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Voss 2022-3-20

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https://ww2.mathworks.cn/matlabcentral/answers/1676114-plot-x-y-z-axes-with-respect-to-time#answer_922499

在 MATLAB Online 中打开

% making up some data:

t = 0:0.01:10;

x = cos(t);

y = sin(t);

z = t;

% plot x,y,z vs t in one plot:

figure();

plot(t,x,t,y,t,z);

legend('x','y','z');

xlabel('t');

grid on

% or make a 3d line whose points are (x,y,z):

figure();

plot3(x,y,z);

xlabel('x');

ylabel('y');

zlabel('z');

box on

grid on

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Navin Johnson 2022-3-21

Hi! Thank you so much for your time and answers! It works!

Voss 2022-3-21

Excellent! You're welcome!

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VBBV 2022-3-20

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1676114-plot-x-y-z-axes-with-respect-to-time#answer_922649

编辑：VBBV 2022-3-20

在 MATLAB Online 中打开

x_back_accel = cell2mat(backside_accel(:,1));
y_back_accel = cell2mat(backside_accel(:,2));
z_back_accel = cell2mat(backside_accel(:,3));
plot(t,x_back_accel,t,y_back_accel,t,z_back_accel);

Convert them to double array and plot it.

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VBBV 2022-3-21

编辑：VBBV 2022-3-21

在 MATLAB Online 中打开

You can use readmatrix function instead of readtable when importing data and to plot them using your initial code without having to use cell2mat

backside_accel = readmatrix('Lab5-Phone-BackSide/accelerometer.csv');
t = 0:0.1:4;
x_back_accel = backside_accel(:,1);
y_back_accel = backside_accel(:,2);
z_back_accel = backside_accel(:,3);
figure()
plot(t,x_back_accel,t,y_back_accel,t,z_back_accel);