[NumPy-Tickets] [NumPy] #1444: numpy.array fails to change a list of tuples with float and string, whith to large string of number
NumPy Trac
numpy-tickets@scipy....
Wed Mar 30 06:26:56 CDT 2011
#1444: numpy.array fails to change a list of tuples with float and string, whith
to large string of number
------------------------------------+---------------------------------------
Reporter: mario | Owner: somebody
Type: defect | Status: new
Priority: normal | Milestone: Unscheduled
Component: numpy.core | Version:
Keywords: array str float lenght |
------------------------------------+---------------------------------------
Changes (by rgommers):
* cc: mwiebe (added)
* component: Other => numpy.core
* milestone: 1.5.1 => Unscheduled
Old description:
> In [39]: c
> Out[39]:
> [(-0.017527029320000002, 'TD_C3_0.440sec'),
> (9.0204180442999995e-06, 'TD_C3_0.920sec')]
>
> In [40]: numpy.array(c)
> Out[40]:
> array([['-0.01752702932', 'TD_C3_0.440sec'],
> ['9.0204180443e-', 'TD_C3_0.920sec']],
> dtype='|S14')
>
> So it seems that the length of the number is restricted by the lenght of
> the string. Proof:
> In [71]: e=[]
>
> In [72]: e.append((a,'TD_C3_0.920second'))
>
> In [73]: e.append((b,'TD_C3_0.920sec'))
>
> In [74]: numpy.array(e)
> Out[74]:
> array([['9.0204180443e-06', 'TD_C3_0.920second'],
> ['-0.01752702932', 'TD_C3_0.920sec']],
> dtype='|S17')
>
> A way out was to set the dtype to '|S17' but thats no real solution.
New description:
{{{
In [39]: c
Out[39]:
[(-0.017527029320000002, 'TD_C3_0.440sec'),
(9.0204180442999995e-06, 'TD_C3_0.920sec')]
In [40]: numpy.array(c)
Out[40]:
array([['-0.01752702932', 'TD_C3_0.440sec'],
['9.0204180443e-', 'TD_C3_0.920sec']],
dtype='|S14')
}}}
So it seems that the length of the number is restricted by the lenght of
the string. Proof:
{{{
In [71]: e=[]
In [72]: e.append((a,'TD_C3_0.920second'))
In [73]: e.append((b,'TD_C3_0.920sec'))
In [74]: numpy.array(e)
Out[74]:
array([['9.0204180443e-06', 'TD_C3_0.920second'],
['-0.01752702932', 'TD_C3_0.920sec']],
dtype='|S17')
}}}
A way out was to set the dtype to '|S17' but thats no real solution.
--
Comment:
<reformat description>
Another corner case casting issue for you Mark.
--
Ticket URL: <http://projects.scipy.org/numpy/ticket/1444#comment:1>
NumPy <http://projects.scipy.org/numpy>
My example project
More information about the NumPy-Tickets
mailing list