Plotting data from .csv file

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Pierre 2019-4-30

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https://ww2.mathworks.cn/matlabcentral/answers/459345-plotting-data-from-csv-file

回答： Junior Jules Francois 2021-10-1

Hello,

I'm trying to find the solution since few days, but without results. I would like to plot my collected data from an accelerometer. There are 4 header lines and I want to plot the first four columns (which are timestamp, x, y and z axis). I tried several solutions found on internet but they didn't work for me.

Thank you for your help.

(MATLAB R2018b)

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Bob Thompson 2019-4-30

How exactly are you looking to organize your plots? Do you want x, y, and z individually against time? 3D contours? Gonna need more information before we can give a more detailed answer.

Here is a sample of how you should be able to load and create a 2D plot.

data = csvread('mydatafile.csv',4); % Read the data
plot(data(:,1),data(:,2)) % Plot x vs time

If there are other things you are stuck with, please expand with more specifics.

Pierre 2019-4-30

Yes exactly, I would like x, y, z individually against time, in 2D. Something like the attached image. You can also find the csv file attached.

Thank you for you answer.

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KSSV 2019-4-30

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https://ww2.mathworks.cn/matlabcentral/answers/459345-plotting-data-from-csv-file#answer_372970

在 MATLAB Online 中打开

data = csvread('mydatafile.csv',4); % Read the data
t = data(:,1) ; 
x = data(:,2) ; 
y = data(:,3) ; 
z = data(:,4) ;
plot(t,x'r',t,y,'b',t,z,'g')
legend('x','y','z')

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Ratih Widiastuti 2020-3-16

Ratih1403202001a.csv

Hi. I tried those script, but I didn't work. My csv file contain data and text. I can import successfully the csv file with the following script:

A=importdata('Ratih1403202001a.csv');

disp(A);

disp(A.data);

But It is hard to plot the data. I want time as x axis and temperature, humidity, wind velocity or solar radiation as y axis. I also attached the error command and my csv file.

Can you help me please?

Thank you