Re: [Matplotlib-users] problem: AttributeError: 'float' object has no attribute 'trace'

[Yuxiang W. <yw...@vi...>]

Hi Juan,

FYI - you forgot to reply to the mailing list in your previous email...

As for the problem, as Eric mentioned, it seems to be a problem with your
plot_posterior_nodes function. That one is out of the matplotlib library,
and I guess it belongs to the HDDM package. You might want to ask people in
their mailing list for more help,

Shawn

On Wed, Jun 3, 2015 at 2:10 PM, Juan Wu <wuj...@gm...> wrote:

> Shawn,
>
> Thanks so much for your prompt reply. This is my code, but it calls other
> package (i.e., HDDM).
>
> v_Neutral, v_Win, v_Loss = m_within_subj.nodes_db.ix[["v_Intercept",
>                                               "v_C(Value_Cond,
> Treatment('Neutral'))[T.Win]",
>                                               "v_C(Value_Cond,
> Treatment('Neutral'))[T.Loss]"], 'node']
> hddm.analyze.plot_posterior_nodes([v_Neutral, v_Win, v_Loss])
> plt.xlabel('drift-rate')
> plt.ylabel('Posterior probability')
> plt.title('Group mean posteriors of within-subject drift-rate effects.')
> plt.savefig('E4_within_subject_design.pdf')
>
> I also tried this, but it also did not work.
>
> v_Neutral, v_Win, v_Loss = m_within_subj.nodes_db.ix[["v_Intercept",
>                                               "v_C(Value_Cond,
> Treatment('Neutral'))[T.Win]",
>                                               "v_C(Value_Cond,
> Treatment('Neutral'))[T.Loss]"], 'node']
> #hddm.analyze.plot_posterior_nodes([v_Neutral, v_Win, v_Loss])
> hddm.analyze.plot_posterior_nodes([float(v_Neutral), float(v_Win),
> float(v_Loss)])
> plt.xlabel('drift-rate')
> plt.ylabel('Posterior probability')
> plt.title('Group mean posteriors of within-subject drift-rate effects.')
> plt.savefig('E4_within_subject_design.pdf')
>
>
>
> On Wed, Jun 3, 2015 at 2:06 PM, Yuxiang Wang <yw...@vi...> wrote:
>
>> Hi Juan,
>>
>> Could you post a minimal code to reproduce your issue?
>>
>> Shawn
>>
>> On Wed, Jun 3, 2015 at 2:03 PM, Juan Wu <wuj...@gm...> wrote:
>>
>>> Hi, List experts,
>>>
>>> Any one can help for this error solution? I googled but did not find
>>> this report.
>>>
>>> Thanks in adance...
>>>
>>> <matplotlib.figure.Figure at 0x1afe8f50>
>>> Traceback (most recent call last):
>>>
>>>   File "<ipython-input-38-7909dff7bc28>", line 5, in <module>
>>>     hddm.analyze.plot_posterior_nodes([float(v_Neutral), float(v_Win),
>>> float(v_Loss)])
>>>
>>>   File "C:\Anaconda\lib\site-packages\kabuki\analyze.py", line 34, in
>>> plot_posterior_nodes
>>>     lb = min([min(node.trace()[:]) for node in nodes])
>>>
>>> AttributeError: 'float' object has no attribute 'trace'
>>>
>>>
>>> ------------------------------------------------------------------------------
>>>
>>> _______________________________________________
>>> Matplotlib-users mailing list
>>> Mat...@li...
>>> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
>>>
>>>
>>
>>
>> --
>> Yuxiang "Shawn" Wang
>> Gerling Research Lab
>> University of Virginia
>> yw...@vi...
>> +1 (434) 284-0836
>> https://sites.google.com/a/virginia.edu/yw5aj/
>>
>
>


-- 
Yuxiang "Shawn" Wang
Gerling Research Lab
University of Virginia
yw...@vi...
+1 (434) 284-0836
https://sites.google.com/a/virginia.edu/yw5aj/