Posted by
Andrea Ferretti on
Feb 18, 2015; 9:20am
URL: https://forum.world.st/GSOC-2015-Call-for-Ideas-tp4805773p4806290.html
Thank you Sven. I think this should be emphasized and prominent on the
home page*. Still, libraries such as pandas are even more lenient,
doing things such as:
- autodetecting which fields are numeric in CSV files
- allowing to fill missing data based on statistics (for instance, you
can say: where the field `age` is missing, use the average age)
Probably there is room for something built on top of Neo
* by the way, I suggest that the documentation on Neo could benefit
from a reorganization. Right now, the first topic on the NeoJSON
paper introduces JSON itself. I would argue that everyone that tries
to use the library knows what JSON is already. Still, there is no
example of how to read JSON from a file in the whole document.
2015-02-18 10:12 GMT+01:00 Sven Van Caekenberghe <
[hidden email]>:
>
>> On 18 Feb 2015, at 09:52, Andrea Ferretti <
[hidden email]> wrote:
>>
>> Also, these tasks
>> often involve consuming data from various sources, such as CSV and
>> Json files. NeoCSV and NeoJSON are still a little too rigid for the
>> task - libraries like pandas allow to just feed a csv file and try to
>> make head or tails of the content without having to define too much of
>> a schema beforehand
>
> Both NeoCSV and NeoJSON can operate in two ways, (1) without the definition of any schema's or (2) with the definition of schema's and mappings. The quick and dirty explore style is most certainly possible.
>
> 'my-data.csv' asFileReference readStreamDo: [ :in | (NeoCSVReader on: in) upToEnd ].
>
> => an array of arrays
>
> 'my-data.json' asFileReference readStreamDo: [ :in | (NeoJSONReader on: in) next ].
>
> => objects structured using dictionaries and arrays
>
> Sven
>
>