How to easily convert .csv file to .mat file in MATLAB

How to convert .csv file to .mat file in MATLAB

Easily Convert .Csv File To .Mat File in Matlab and Plot the Values in a Graph

• Initially convert the .csv file (used a .csv file with three numeric variables and with 1000+ entries) to table by importing it in MATLAB. After importing if you need to generate a script means you can follow the steps in the video.
• Then since we have created table file we have to convert it into .mat file for that using table2array default function
• Next  plotted these results in a line graph.

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Full Matlab video on Youtube

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Full Matlab Code 

%% Import data from text file

% Script for importing data from the following text file:

%

%

%% Setup the Import Options

opts = delimitedTextImportOptions('NumVariables', 3);

 

% Specify range and delimiter

opts.DataLines = [1, Inf];

opts.Delimiter = ',';

 

% Specify column names and types

opts.VariableNames = ['VarName1', 'VarName2', 'VarName3'];

opts.VariableTypes = ['double', 'double', 'double'];

opts.ExtraColumnsRule = 'ignore';

opts.EmptyLineRule = 'read';

% Import the data

sampledata = readtable('F:\sample code\myworks\matlab\text mining\plot csv data\sample_data.csv', opts);

%% Clear temporary variables

clear opts

sampledata=table2array(sampledata);

%%plot these variables in graph

figure;

plot(sampledata(:,1))

legend('sample 1')

xlabel('time')

ylabel('series')

title('first sample')

grid on

pause(0.5)

% Plot results

figure;

plot(sampledata(:,2),'r*-','linewidth',2)

legend('sample 2')

xlabel('time')

ylabel('series')

title('second sample')

pause(0.5)

% Plot results

figure;

plot(sampledata(:,3),'r*-','linewidth',2)

legend('sample 3')

xlabel('time')

ylabel('series')

title('third sample')

grid on

Matlab Output Result

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Results Line graphs for three variables

 first variable as sample 1 second as sample 2 and third as sample 3.

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