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Plotting graphs in_matlab

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Workshop on MATLAB at the Department of Computer Science, Poona College, Pune

Workshop on MATLAB at the Department of Computer Science, Poona College, Pune

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    Plotting graphs in_matlab Plotting graphs in_matlab Presentation Transcript

    • 10/23/2012 40 30 20 10 9 10 8 0 1 7 0.5 1 0 0.5 0 6 -0.5 -0.5 -1 -1 Plotting Graphs in MATLAB 5 4 3 2 1 0 0 1 2 3 4 5 6 7 8 9 10DOES - PC
    • Plots: 2D & 3D: 2D Plot: Plot(Y) Plot(Y) plots the columns of Y versus their index if Y is a real number. Plot(X,Y) If Y is complex, plot(Y) is equivalent to plot(real(Y),imag(Y)).DOES - PC
    • Examples:>> x=0:1:10x= 0 1 2 3 4 5 6 7 8 9 10>> y = 0:10:100y= 0 10 20 30 40 50 60 70 80 90 100
    • >> plot(x,y)>> plot(x)>> plot(y) 100 90 80 70 60 50 40 30 20 10 0 0 1 2 3 4 5 6 7 8 9 10
    • 3D Plot: plot3 The plot3 function displays a three-dimensional plot of a set of data points. >> t = 0:pi/50:10*pi; 40 >> plot3(sin(t),cos(t),t) 30 20 10 0 1 0.5 1 0 0.5 0 -0.5 -0.5 -1 -1DOES - PC
    • Pie chart (2D): pie(X) 20% 20% pie(X,explode)>> x = [2 2 2 2 2];>> explode = [1 1 1 1 1];>> pie(x,explode) 20% 20% 20%
    • Pie chart (3D):>> x = [1 3 0.5 2.5 2];>> % Create a 3D pie chart using the pie3 function>> figure;>> explode = [0 1 0 0 0]; 22%>> pie3(x, explode); 11% 28% 33% 6%
    • Graph Functions:• plot linear plot• stem discrete plot• grid add grid lines• xlabel add X-axis label• ylabel add Y-axis label• title add graph title• subplot divide figure window• figure create new figure window• pause wait for user response
    • Types of Graphs:(Use MATLAB help Window)axisBar3GridLineLineSpecLoglogPlotSemilogxSemilogySubplot........