MATLAB

Plotting Graphs in MATLAB

plot in matlab

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)).
>> x=0:1:10

x =

0     1     2     3     4     5     6     7     8     9    10

>> y = 0:10:100

y =

0    10    20    30    40    50    60    70    80    90   100

>> plot(x,y)

>> plot(x)

>> plot(y)

3D Plot:
p
lot3

The plot3 function displays a three-dimensional plot of a set of data points.

>>  t = 0:pi/50:10*pi;

>>  plot3(sin(t),cos(t),t)

pie(X)
pie(X,explode)

>>  x = [2 2 2 2 2];

>>  explode = [1 1 1 1 1];

>>  pie(x,explode)

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];

>>  pie3(x, explode);

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

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