[yam]ZeroDivisionError: division by zero

[Blaž Vičič]

Tom, thanks. its exactly what u said... i have set downsample to false.
whit removal of this, everything works.
cheers

On Thu, 9 Aug 2018 at 11:22 Tom Eulenfeld <tom.eulenfeld at uni-jena.de> wrote:

> Dear Blaž,
>
> please double-check your configuration. It is possible to set downsample
> option to null (None) or the target frequency or to delete the option
> entirely.
>
> I can reproduce the reported behavior if I set downsample to false which
> is interpreted as a target frequency of zero.
>
> Did this solve the issue?
>
> Best,
> Tom
>
>
>
> On 09.08.2018 10:04, Blaž Vičič wrote:
> > Dear all.
> > I am trying to process some data using yam. Prior to the correlation, I
> > removed the response of the data and downsampled it to 20Hz.
> >   when I call yam correlate 1, this is the error I get:
> >
> > (obspy) pb-vicic:proc_2 bvicic$ yam correlate 1
> >
> > 0%| | 0/730 [00:00<?, ?it/s]multiprocessing.pool.RemoteTraceback:
> >
> > """
> >
> > Traceback (most recent call last):
> >
> > File
> >
> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/multiprocessing/pool.py",
> > line 119, in worker
> >
> > result = (True, func(*args, **kwds))
> >
> > File
> >
> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/yam/correlate.py",
>
> > line 549, in correlate
> >
> > **preprocessing_kwargs)
> >
> > File
> >
> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/yam/correlate.py",
>
> > line 392, in preprocess
> >
> > stream.traces = start_parallel_jobs_inner_loop(stream, do_work, njobs)
> >
> > File
> >
> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/yam/correlate.py",
>
> > line 26, in start_parallel_jobs_inner_loop
> >
> > results = [do_work(task) for task in tasks]
> >
> > File
> >
> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/yam/correlate.py",
>
> > line 26, in <listcomp>
> >
> > results = [do_work(task) for task in tasks]
> >
> > File
> >
> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/yam/correlate.py",
>
> > line 310, in _prep1
> >
> > interpolate_options=interpolate_options)
> >
> > File
> >
> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/yam/correlate.py",
>
> > line 266, in _downsample_and_shift
> >
> > dt = 1 / target_sr
> >
> > ZeroDivisionError: division by zero
> >
> > """
> >
> >
> > The above exception was the direct cause of the following exception:
> >
> >
> > Traceback (most recent call last):
> >
> > File "/Users/bvicic/anaconda3/envs/obspy/bin/yam", line 11, in <module>
> >
> > sys.exit(run_cmdline())
> >
> > File
> >
> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/yam/main.py",
>
> > line 388, in run_cmdline
> >
> > run(**args)
> >
> > File
> >
> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/yam/main.py",
>
> > line 147, in run
> >
> > run2(command, **args)
> >
> > File
> >
> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/yam/main.py",
>
> > line 211, in run2
> >
> > yam.commands.start_correlate(io, **args)
> >
> > File
> >
> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/yam/commands.py",
>
> > line 101, in start_correlate
> >
> > total=len(tasks)):
> >
> > File
> >
> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/tqdm/_tqdm.py",
>
> > line 930, in __iter__
> >
> > for obj in iterable:
> >
> > File
> >
> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/multiprocessing/pool.py",
> > line 735, in next
> >
> > raise value
> >
> > ZeroDivisionError: division by zero
> >
> > Exception ignored in: <bound method tqdm.__del__ of 0%| | 0/730
> > [00:00<?, ?it/s]>
> >
> > Traceback (most recent call last):
> >
> > File
> >
> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/tqdm/_tqdm.py",
>
> > line 882, in __del__
> >
> > File
> >
> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/tqdm/_tqdm.py",
>
> > line 1087, in close
> >
> > File
> >
> "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/site-packages/tqdm/_tqdm.py",
>
> > line 439, in _decr_instances
> >
> > File "/Users/bvicic/anaconda3/envs/obspy/lib/python3.6/_weakrefset.py",
> > line 109, in remove
> >
> > KeyError: <weakref at 0x10dd03b88; to 'tqdm' at 0x10dd13cf8>
> >
> >
> > any idea whats going on here? I changed the data with the originals and
> > added remove response and downsample to config, but the error is same.
> >
> > the example works though.
> >
> > Thanks,
> > blaz
> >
> >
> > _______________________________________________
> > seistools mailing list
> > seistools at listserv.uni-jena.de
> > https://lserv.uni-jena.de/mailman/listinfo/seistools
> >
>
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