How to combine multiple numpy arrays stored on disk which are too big to fit in RAM?

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  • h5py

    HDF5 for Python -- The h5py package is a Pythonic interface to the HDF5 binary data format.

    • If it is a dataset, it should consist of individual instances. You could store these instances in separate files. Otherwise, HDF5 is a very convenient storage format. It allows random read/write access to elements of arrays stored on disk and has excellent Python support in form of the h5py package.

  • external-Merge-Sort

    external Merge Sort in python.

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    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

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