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This user guide is designed to explain (and provide examples for) the main functionality in ND4J. It is still a work in progress.

• Introduction
  • NDArrays: How Are They Stored in Memory?
  • Views: When an two or more INDArrays refer to the same data
    
• Creating NDArrays
  • Zero, One and Scalar-Value Initialized Arrays
  • Random arrays
  • Creating NDArrays from Java arrays
  • Creating NDArrays from other NDArrays
  • Miscellanous NDArray Creation Methods
    
• Getting and Setting Individual Values
• Getting and Setting Parts of NDArrays
  • getRow() and putRow()
  • Sub-arrays: get(), put() and NDArrayIndex
  • Tensor Along Dimension
  • Slice
    
• Performing Operations on NDArrays
  • Scalar Ops
  • Transform Ops
  • Accumulation (Reduction) Ops
  • Index Accumulation Ops,
  • Broadcast and Vector Operations
    
• Boolean Indexing: Selectively Apply Operations Based on a Condition
• Advanced and Miscellaneous Topics
  • Setting the data type
  • Reshaping
  • Flattening
  • [url=]Permute[/url]
  • [url=]sortRows/sortColumns[/url]
  • [url=]Directly accessing BLAS operations[/url]
    
• Quick Reference: A Summary Overview of ND4J Methods
• FAQ: Frequently Asked Questions