Geoscience Reference
In-Depth Information
plot(x,y1,'--')
figure
plot(x,y2,'-')
Instead of plotting both lines in one graph simultaneously, we can also plot
the sine wave, hold the graph and then plot the second curve. h e command
hold
is particularly important for displaying data while using dif erent plot
functions, for example if we wish to display the sine of
x
as a line plot and the
cosine of
x
as a bar plot.
plot(x,y1,'r--')
hold on
bar(x,y2)
hold off
h is command plots
y1
versus
x
as a dashed red line using
'r--'
, whereas
y2
versus
x
is shown as a group of blue vertical bars. Alternatively, we can plot
both graphics in the same Figure Window but in dif erent plots using
subplot
.
h e syntax
subplot(m,n,p)
divides the Figure Window into an
m
-by-
n
array
of display regions and makes the
p
th display region active.
Fig. 2.4
Screenshot of the MATLAB
Figure Window
showing two curves in dif erent colors and
line types. h e Figure Window allows editing of all elements of the graph at er selecting
Edit
Plot
from the
To o l s
menu. Double clicking on the graphics elements opens an options window
for modifying the appearance of the graphics. h e graphics can be exported using
Save
as
from the
File
menu. h e command
Generate Code
from the
File
menu creates MATLAB code
from an edited graph.