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%% Load and Plot Data from Text File % This example uses sample data in |count.dat|, a space-delimited % text file. The file consists of three sets of hourly traffic counts, % recorded at three different town intersections over a 24-hour period. % Each data column in the file represents data for one intersection. % Copyright 2015 The MathWorks, Inc. %% Load the count.dat Data % Import data into the workspace using the |load| function. load count.dat %% % Loading this data creates a 24-by-3 matrix called |count| in the MATLAB % workspace. %% % Get the size of the data matrix. [n,p] = size(count) %% % |n| represents the number of rows, and |p| represents the number of columns. %% Plot the count.dat Data % Create a time vector, |t|, containing integers from |1| to |n|. t = 1:n; %% % Plot the data as a function of time, and annotate the plot. plot(t,count), legend('Location 1','Location 2','Location 3','Location','NorthWest') xlabel('Time'), ylabel('Vehicle Count') title('Traffic Counts at Three Intersections')