Julia axes()用法及代码示例

这个axes()是 julia 中的一个内置函数，用于返回指定数组的元组或有效索引的有效范围。

用法：
axes(A)
or
axes(A, d)

参数：

A:指定数组。
d:指定尺寸。

返回值：它返回指定数组的元组或有效索引的有效范围。

范例1：


# Julia program to illustrate 
# the use of Array axes() method
  
# Getting tuple for 1D array of size 5
# with each element filled with value 4
println(axes(fill(4, (5))))
  
# Getting tuple for 2D array of size 2X3  
# with each element filled with value 5  
println(axes(fill(5, (2, 3))))
  
# Getting tuple for 3D array of size 2X3X4
# with each element filled with value 4
println(axes(fill(4, (2, 3, 4))))

输出：

范例2：


# Julia program to illustrate 
# the use of Array axes() method
  
# Getting tuple for 1D array of size 5
# with each element filled with value 4
# along with dimension of 1
A = fill(4, (5));
println(axes(A, 1))
  
# Getting tuple for 2D array of size 2X3  
# with each element filled with value 5  
# along with dimension of 2
B = fill(5, (2, 3));
println(axes(B, 2))
  
# Getting tuple for 3D array of size 2X3X4
# with each element filled with value 4
# along with dimension of 3
C = fill(4, (2, 3, 4));
println(axes(C, 3))

输出：

相关用法

注：本文由纯净天空筛选整理自Kanchan_Ray大神的英文原创作品 Getting tuple or range of the valid indices in Julia – axes() Method。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。