Numpy basics

• Data types
  • Array types and conversions between types
  • Array Scalars
• Array creation
  • Introduction
  • Converting Python array_like Objects to Numpy Arrays
  • Intrinsic Numpy Array Creation
  • Reading Arrays From Disk
• I/O with Numpy
  • Importing data with genfromtxt
• Indexing
  • Assignment vs referencing
  • Single element indexing
  • Other indexing options
  • Index arrays
  • Indexing Multi-dimensional arrays
  • Boolean or “mask” index arrays
  • Combining index arrays with slices
  • Structural indexing tools
  • Assigning values to indexed arrays
  • Dealing with variable numbers of indices within programs
• Broadcasting
  • General Broadcasting Rules
• Byte-swapping
  • Introduction to byte ordering and ndarrays
  • Changing byte ordering
• Structured arrays
  • Introduction
  • Defining Structured Arrays
  • Accessing and modifying field names
  • Accessing field titles
  • Accessing multiple fields at once
  • Filling structured arrays
  • Record Arrays
• Subclassing ndarray
  • Credits
  • Introduction
  • View casting
  • Creating new from template
  • Relationship of view casting and new-from-template
  • Implications for subclassing
  • Simple example - adding an extra attribute to ndarray
  • Slightly more realistic example - attribute added to existing array
  • __array_wrap__ for ufuncs
  • Extra gotchas - custom __del__ methods and ndarray.base