How to plot graph from mat file?

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KIEN WEI LAI 2020-3-25

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/512816-how-to-plot-graph-from-mat-file

评论： Steven Lord 2020-3-25

采纳的回答： Subhamoy Saha

lai3.mat

在 MATLAB Online 中打开

Hi everyone, I face a difficulty in plotting graph from mat file. I want to get the graph from the mat file but the graph did not pop out and get the result in command window as shown in the figure 1 below.

Figure 1

The figure 2 below is the setting for the code.

Anyone can help me? Thanks. This is the code I am using:

clc;
clear all;
close all;
s = load('lai3.mat');
plot(transpose(s.val))

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Steven Lord 2020-3-25

I recommend you change the name of your script. There is already a function named graph in MATLAB.

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采纳的回答

Subhamoy Saha 2020-3-25

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/512816-how-to-plot-graph-from-mat-file#answer_421861

在 MATLAB Online 中打开

clc;
clear all;
close all;
s = load('lai3.mat');
x=s.lai3(:,1); % s is having a field named lai3
y=s.lai3(:,2);
plot(x,y)

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Subhamoy Saha 2020-3-25

Can you tell what was the problem because I'm getting plot with the sugested line of codes.

KIEN WEI LAI 2020-3-25

It is the naming of my file. I put graph.mat instead of other name. That's why have the problem.

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