[HN Gopher] A Julia package for high-throughput manipulation of ...
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       A Julia package for high-throughput manipulation of structured
       signal data
        
       Author : mooreds
       Score  : 52 points
       Date   : 2022-11-30 17:50 UTC (5 hours ago)
        
 (HTM) web link (github.com)
 (TXT) w3m dump (github.com)
        
       | warinukraine wrote:
       | > The Onda Format Specification
       | 
       | > Onda is a lightweight format defined atop Apache Arrow for
       | storing and manipulating sets of multi-sensor, multi-channel,
       | LPCM-encodable, annotated, time-series recordings.
       | 
       | > This format is intentionally language-agnostic; any
       | consumer/producer that supports Apache Arrow can read/write Onda-
       | compliant Arrow tables. For the sake of convenience, the Onda
       | specification resides here (in the Onda.jl repository) and
       | leverages the Legolas framework to both define and version the
       | Arrow table schemas relevant to the format. Terminology
       | 
       | > This document uses the term...
       | 
       | > ..."LPCM" to refer to linear pulse code modulation, a form of
       | signal encoding where multivariate waveforms are digitized as a
       | series of samples uniformly spaced over time and quantized to a
       | uniformly spaced grid.
       | 
       | > ..."signal" to refer to the digitized output of a process. We
       | refer to the "devices" (physical, or virtual) that sample
       | processes to generate signals as sensors. A signal is comprised
       | of metadata (e.g. LPCM encoding, sensor information, channel
       | information, sample data path/format information, etc.) and
       | associated multi-channel sample data.
       | 
       | > ..."recording" to refer a collection of one or more signals
       | recorded simultaneously over some time period.
       | 
       | > ..."annotation" to refer to a piece of (meta)data associated
       | with a specific time span within a specific recording.
       | 
       | I'm not sure if it's directly relevant for what I do, but I
       | invariably learn a lot from reading Julia libraries; they tend to
       | be high-quality. Certain higher quality than the average python
       | library. This is what I'm gonna be doing tonight after dinner :-)
       | Thanks for sharing.
        
         | patrick451 wrote:
         | Are they? The last time I tried to use
         | DifferentialEquations.jl, most of the examples were broken.
         | I've not yet run into a broken scipy example...
        
           | Libbum wrote:
           | You may have been reading a different version of the
           | documentation. Documenter.jl outputs are dependent on the
           | code actually running (and it's the package
           | DifferentialEquations.jl uses to build its docs).
        
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       (page generated 2022-11-30 23:01 UTC)