Scilab Function
Last update : 18/05/2014
plot2d1 - 2D plot (logarithmic axes)
(obsolete)
Calling Sequence
- plot2d1(str,x,y,[style,strf,leg,rect,nax])
Parameters
-
str: is a string of length three "abc".
-
a: can have the following values: e,
o or g.
-
e: means "empty". Itspecifies the fact that the value
of x is not used (the x values
are supposed to be regularly spaced, ie 1:<number of
rows of y>). The user must anyway give a
value for x, 1 for instance:
plot2d1("enn",1,y).
-
o: means "one". If there are many curves, they all
have the same x-values: x is a column
vector of size nl and y is a matrix of size
(nl,nc). For example : x=[0:0.1:2*%pi]';
plot2d1("onn",x,[sin(x) cos(x)]).
-
g: means "general". x and y
must have the same size (nl,nc). Each column of
y is plotted with respect to the
corresponding column of x. nc
curves are plotted using nl points.
-
b, c: can have the values n (normal) or
l (logarithmic).
-
b=l: a logarithmic axis is used on the x-axis
-
c=l: a logarithmic axis is used on the y-axis
-
x,y,[style,strf,leg,rect,nax]: these arguments have the same meaning as in the
plot2d function.
-
opt_args: these arguments have the same meaning as in the
plot2d function.
Description
This function is obsolete. USE plot2d INSTEAD !!
plot2d1 plots a set of 2D curves. It is the same as
plot2d but with one more argument str which
enables logarithmic axis. Moreover, it allows to specify only one column
vector for x when it is the same for all the curves.
By default, successive plots are superposed. To clear the previous
plot, use clf.
Enter the command plot2d1() to see a demo.
Examples
// multiple plot without giving x
x=[0:0.1:2*%pi]';
plot2d1("enn",1,[sin(x) sin(2*x) sin(3*x)])
// multiple plot using only one x
clf()
plot2d1("onn",x,[sin(x) sin(2*x) sin(3*x)])
// logarithmic plot
x=[0.1:0.1:3]'; clf()
plot2d1("oll",x,[exp(x) exp(x^2) exp(x^3)])
See Also
plot2d, plot2d2, plot2d3, plot2d4, clf,
Author
J.Ph.C.