Mercurial > hg > octave-lyh

comparison scripts/plot/semilogy.m @ 13103:2e2738837a24

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add tests and demos for log-scale plotting functions * semilogx.m, semilogy.m, loglog.m : Add new tests and demos.
author Carlo de Falco <kingcrimson@tiscali.it>
date Tue, 06 Sep 2011 15:38:32 +0200
parents 7f127e079a7c
children 3b5449493bb8
comparison
equal deleted inserted replaced
13102:801c5a6ad487 13103:2e2738837a24
64 %!demo 64 %!demo
65 %! x = 1:0.01:10; 65 %! x = 1:0.01:10;
66 %! y = (x .* (1 + rand (size (x)))) .^ 2; 66 %! y = (x .* (1 + rand (size (x)))) .^ 2;
67 %! semilogy (x, y); 67 %! semilogy (x, y);
68 68
69 ## Remove from test statistics. No real tests possible. 69 %!demo
70 %!assert (1) 70 %! clf ();
71 %! a = logspace (-5, 1, 10);
72 %! b =-logspace (-5, 1, 10);
73 %!
74 %! subplot (1, 2, 1)
75 %! semilogy (a, b)
76 %! xlabel ('semilogy (a, b)')
77 %!
78 %! subplot (1, 2, 2)
79 %! semilogy (a, abs (b))
80 %! set (gca, 'ydir', 'reverse')
81 %! xlabel ('semilogy (a, abs (b))')
82 %!
83 %! fprintf ('the two plots should look the same except for the sign in y tick labels')
84
85 %!test
86 %! hf = figure (1232, "visible", "off");
87 %! unwind_protect
88 %! a = logspace (-5, 1, 10);
89 %! b = logspace (-5, 1, 10);
90 %! semilogy (a, b)
91 %! assert (get (gca, "yscale"), "log");
92 %! assert (get (gca, "xscale"), "linear");
93 %! unwind_protect_cleanup
94 %! close (hf);
95 %! end_unwind_protect
96
97 %!test
98 %! hf = figure (1232, "visible", "off");
99 %! unwind_protect
100 %! a = logspace (-5, 1, 10);
101 %! b =-logspace (-5, 1, 10);
102 %! semilogy (a, b)
103 %! axis tight
104 %! assert (all (get (gca, "ytick") < 0));
105 %! unwind_protect_cleanup
106 %! close (hf);
107 %! end_unwind_protect
108
109