README.md

NumPy

Installation

• pip install numpy

Import

• import numpy as np

Concepts

• Array
  • .array()
  • .dtype, .ndim, .shape
• DataTypes
  • i: int, u: unsigned int, c: complex, f: float
  • M: datetime, m: timedelta
  • b: bool
  • O: object
  • S: string, U: unicode string
  • V: byte-like object ??
• Convert Data Type
  • .astype()
• Functions
  • .reshape()
  • np.concatenate(), np.stack(), np.hstack(), np.vstack(), np.dstack()
  • np.nditer(array), np.ndenumerate(array)
  • np.copyTo(dst,src)
  • np.sort(array)
• Filter
  • Where
• Access
  • One Row
  • One Column
  • Box
  • .copy() va .view(), .base _{check if returned array is copy or view}
• Math
  • np.min(), np.max()
  • np.sum(), np.mean(), np.median(), np.std(), np.abs()