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PLOT CSV FILE IN MATLAB

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Willian Alexander Correa Reyes
评论： Ankit 2021-7-9
Good Morning,
I am trying to graph the attached .csv file but it does not run correctly, my code is as follows.
t,p = csvread('re.csv',1,0);
y_line_1= tmp(:,7);
x_line_1= tmp(:,3);
plot(x_line_1,y_line_1,'b-')
I appreciate the help.
Willian
X axis: P2
Y axis: P6

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Ankit
Ankit 2021-7-8
编辑：Ankit 2021-7-8
csvread: The file can only contain numeric values.
I would prefer readtable command. With this command you have flexibility to use variety of import options too. This "opts" object contains properties that control the data import process.
For more info on readtable see the following link - readtable
tmp = readtable('re.csv');
y_line_1= table2array(tmp(:,7));
x_line_1= table2array(tmp(:,3));
plot(x_line_1,y_line_1,'b-')
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Jeremy Hughes
Jeremy Hughes 2021-7-8
I see this a lot:
table2array(tmp(:,7)) % extracts a sub table then converts it to an array
Which is a complicated way of doing:
tmp.(7) % directly extracts the seventh variable.
Also, in newer releases you could be using:
tmp = readmatrix('re.csv');
Ankit
Ankit 2021-7-9
@Jeremy Hughes thanks for the suggestion :) I am looking forward for readmatrix command

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