Hi,
list_plot doesn't plot numpy arrays:
sage: from numpy import *
sage: a = [[x, x**2] for x in arange(-5,5,0.1)]
sage: list_plot(a)
works fine, but
sage: a = array([[x, x**2] for x in arange(-5,5,0.1)])
sage: list_plot(a)
results in
---------------------------------------------------------------------------
TypeError Traceback (most recent call
last)
/home/tobias/<ipython console> in <module>()
/opt/sage/local/lib/python2.5/site-packages/sage/plot/plot.py in
list_plot(data, plotjoined, **kwargs)
4033 P = line(data, **kwargs)
4034 else:
-> 4035 P = point(data, **kwargs)
4036 return P
4037
/opt/sage/local/lib/python2.5/site-packages/sage/plot/plot.py in
__call__(self, points, coerce, **kwds)
2732 if coerce:
2733 xdata = [float(z[0]) for z in points]
-> 2734 ydata = [float(z[1]) for z in points]
2735 else:
2736 xdata = [z[0] for z in points]
TypeError: only length-1 arrays can be converted to Python scalars
OS: Linux darkblue 2.6.24-19-generic #1 SMP Wed Aug 20 22:56:21 UTC 2008
i686 GNU/Linux
Sage Version: SAGE Version 3.1.1, Release Date: 2008-08-17
I have added a patch to address this issue.
Best wishes,
Tobias
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diff -r 2011c30ecfe0 sage/plot/plot.py
--- a/sage/plot/plot.py Sun Aug 17 11:39:34 2008 -0700
+++ b/sage/plot/plot.py Sun Sep 28 21:07:34 2008 +0200
@@ -4027,7 +4027,8 @@ def list_plot(data, plotjoined=False, **
100.0
"""
- if not isinstance(data[0], (list, tuple)):
+ from numpy import ndarray
+ if not isinstance(data[0], (list, tuple, ndarray)):
data = zip(range(len(data)),data)
if plotjoined:
P = line(data, **kwargs)
