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Operators and Keywords

Function List:

C++ API

: loglog (y)
: loglog (x, y)
: loglog (x, y, prop, value, …)
: loglog (x, y, fmt)
: loglog (hax, …)
: h = loglog (…)

Produce a 2-D plot using logarithmic scales for both axes.

See the documentation of plot for a description of the arguments that loglog will accept.

If the first argument hax is an axes handle, then plot into this axis, rather than the current axes returned by gca.

The optional return value h is a graphics handle to the created plot.

See also: plot, semilogx, semilogy.

Demonstration 1

The following code

 clf;
 t = 1:0.01:10;
 x = sort ((t .* (1 + rand (size (t)))) .^ 2);
 y = (t .* (1 + rand (size (t)))) .^ 2;
 loglog (x, y);
 title ({"loglog() plot", "Both axes are logarithmic"});

Produces the following figure

Figure 1

Demonstration 2

The following code

 clf;
 a = logspace (-5, 1, 10);
 b =-logspace (-5, 1, 10);

 subplot (1,2,1);
  loglog (a, b);
  title ("loglog (a, b)");

 subplot (1,2,2);
  loglog (a, abs (b));
  set (gca, "ydir", "reverse");
  title ("loglog (a, abs (b))");

Produces the following figure

Figure 1

Package: octave