AttributeError: 'DataFrame' object has no attribute 'TIME_StartTime'

[egorfolley]

I installed px4tools using conda and everything works fine, except for
px4tools.logsysid.control_design_ulog(data, do_plot=True)
Jupyter notebook returns:

AttributeError Traceback (most recent call last)
in
----> 1 px4tools.logsysid.control_design(data, do_plot=True)

~/anaconda3/lib/python3.6/site-packages/px4tools/logsysid.py in control_design(raw_data, do_plot, rolling_mean_window, verbose)
403 :return: (gain ordered dict, local variables)
404 """
--> 405 data, dt = setup_data(raw_data)
406 d_tc = 1.0 / 125 # nyquist frequency of derivative in PID, (250 Hz/2)
407 K_guess_att = np.matrix([[1.0]]).T

~/anaconda3/lib/python3.6/site-packages/px4tools/logsysid.py in setup_data(df)
25 :return: (df_rs, dt) resample dataframe and period (1 ms)
26 """
---> 27 df = px4tools.get_float_data(df)
28
29 t = pandas.to_timedelta(

~/anaconda3/lib/python3.6/site-packages/px4tools/analysis.py in get_float_data(dataframe)
165 Get float data out of dataframe.
166 """
--> 167 dataframe = dataframe[np.isfinite(dataframe.TIME_StartTime)]
168 float_cols = [isfloatarray(col) for col in dataframe.values.T]
169 return (dataframe.T[float_cols].T).astype(float)

~/.local/lib/python3.6/site-packages/pandas/core/generic.py in getattr(self, name)
5065 if self._info_axis._can_hold_identifiers_and_holds_name(name):
5066 return self[name]
-> 5067 return object.getattribute(self, name)
5068
5069 def setattr(self, name, value):

AttributeError: 'DataFrame' object has no attribute 'TIME_StartTime'

Is there any resolution for this issue ? or how can I see analyze for PID controller?

[DanAbara]

@EgorFollia did you manage to sort this out?

cc: @jgoppert

I have the similar issue only that I am trying to run the ulog example ulog_analysis using my own ulog file. The data reading goes through but after that, I get the following error:

`'DataFrame' object has no attribute 't_vehicle_groundtruth_0__f_q_0_'

---

AttributeError Traceback (most recent call last)
in
1 d_concat = d.concat(dt=0.1)
2 d_concat_computed = px4tools.compute_data(d_concat)
----> 3 px4tools.estimator_analysis(d_concat_computed)

C:\ProgramData\Anaconda3\envs\idenv\lib\site-packages\px4tools\ulog.py in estimator_analysis(df, plot)
505 data = {
506 'roll_error_mean': np.rad2deg(
--> 507 df.t_vehicle_attitude_0__f_roll_error.mean()),
508 'pitch_error_mean': np.rad2deg(
509 df.t_vehicle_attitude_0__f_pitch_error.mean()),

C:\ProgramData\Anaconda3\envs\idenv\lib\site-packages\pandas\core\generic.py in getattr(self, name)
5178 if self._info_axis._can_hold_identifiers_and_holds_name(name):
5179 return self[name]
-> 5180 return object.getattribute(self, name)
5181
5182 def setattr(self, name, value):

AttributeError: 'DataFrame' object has no attribute 't_vehicle_attitude_0__f_roll_error'
`

Please help. The noise analysis example runs without any issues.

[dan-leo]

I had the same error when I had run px4tools.concat more than once in this example. Hopefully that fixes it. Print the column labels for each dictionary entry in d and you'll see if t_vehicle_attitude_0__f_roll_error exists.