Hirokazu SUZUKI

icon indicating an email [email protected]

icon location Hiroshima, Japan icon location Agrestal Rubyist. Laser device engineer, in the areas of thermal analysis, multiphysical simulation and human color vision.

Results 6 comments of Hirokazu SUZUKI

Improve loading/parsing speed in 'arrowable' environment

Thanks @kou . I will make a try to add `Datasets::CSVParser` first!

Separate directories in 'lib/datasets'

Ah, I didn't think about errors. Is this work? ``` lib/ datasets/ # includes common engines (some_good_name)/ # includes each .rb for datasets ```

Long to wide, filling missing element with `nil`

Thank you @KitaitiMakoto . I think this feature is useful. I think it is better to separate steps in filling missing records. 1. Create Cartesian Product(直積) of `df.names.uniq` and `df.NAME.uniq`....

Dataset size

I think what you have in mind is too early question for RedAmber, however, it is important for users to know how much scale data and what features it has...

Dataset size

# Comparing features between RedAmber, dplyr/tidyr and pandas This is the comparison of basic feature between RedAmber and other major DataFrame libraries, comparing only for the method 'verbs' ignoring parameters...

Dataset size

Yes. It would be nice if this is part of the Document in source tree. I can accept requests for modifications.