Differences between revisions 8 and 9
⇤ ← Revision 8 as of 2006-05-17 03:03:16 →
Size: 628
Editor: ZhangYunfeng
Comment:
← Revision 9 as of 2009-12-25 07:14:33 → ⇥
Size: 628
Editor: localhost
Comment: converted to 1.6 markup
Deletions are marked like this. Additions are marked like this.
Line 6: Line 6:
[[TableOfContents]] <<TableOfContents>>

Contents

  1. Numeric
    1. 简介
    2. 例子
    3. 函数
      1. take

1. Numeric

1.1. 简介

Numeric又称为NumericalPython。Numeric已经不再继续开发(2005-11)，NumPy是其下一代继承者。

提供对序列（主要是矩阵)的快速操作

1.2. 例子

>>> import Numeric as N

>>> a = 0,0,1,1,0],[1,1,0,0,1],[0,0,1,0,1

>>> N.where(a, 100,99)

array([[ 99, 99, 100, 100, 99],

  • [100, 100, 99, 99, 100], [ 99, 99, 100, 99, 100]])

1.3. 函数

1.3.1. take

取出矩阵的几行或几列

Numeric (last edited 2009-12-25 07:14:33 by localhost)