plot2d2

2D plot (step function)

Calling Sequence

plot2d2([x],y)
plot2d2([x],y,<opt_args>)
plot2d2([logflag],x,y,[style,strf,leg,rect,nax])

Arguments

:args see plot2d for a description of parameters. :

Description

plot2d2 is the same as plot2d but the functions given by (x,y) are supposed to be piecewise constant.

By default, successive plots are superposed. To clear the previous plot, use clf().

Enter the command plot2d2() to see a demo. Note that all the modes proposed by plot2dxx (xx = 1 to 4) can be enabled using plot2d and setting the polyline_style option to the corresponding number.

Sample

Examples

// plots a step function of value i on the segment [i,i+1]
// the last segment is not drawn
plot2d2([1:4],[1:4],1,"111","step function",[0,0,5,5])
// compare the following with plot2d
x=[0:0.1:2*%pi]';
`clf`_()
plot2d2(x,[`sin`_(x) `sin`_(2*x) `sin`_(3*x)])
`clf`_();
`plot2d`_(x,[`sin`_(x) `sin`_(2*x) `sin`_(3*x)])
e=`gce`_();
e.children(1).polyline_style=2;
e.children(2).polyline_style=2;
e.children(3).polyline_style=2;

See Also

• plot2d 2D plot
• plot2d3 2D plot (vertical bars)
• plot2d4 2D plot (arrows style)
• subplot divide a graphics window into a matrix of sub-windows
• clf clear or reset the current graphic figure (window) to default values
• polyline_properties description of the Polyline entity properties