numpy.eye(R, C = None, k = 0, dtype = type <‘float’>) : –The eye tool returns a 2-D array with 1’s as the diagonal and 0’s elsewhere. The diagonal can be main, upper, or lower depending on the optional parameter k. A positive k is for the upper diagonal, a negative k is for the lower, and a 0 k (default) is for the main diagonal.
Parameters :
R : Number of rows
C : [optional] Number of columns; By default M = N
k : [int, optional, 0 by default]
Diagonal we require; k>0 means diagonal above main diagonal or vice versa.
dtype : [optional, float(by Default)] Data type of returned array.
Returns :
array of shape, R x C, an array where all elements
are equal to zero, except for the k-th diagonal,
whose values are equal to one.
Example:
Python
import numpy as geek
b = geek.eye( 2 , dtype = float )
print ( "Matrix b : \n" , b)
a = geek.eye( 4 , 5 , k = - 1 )
print ( "\nMatrix a : \n" , a)
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Output :
Matrix b :
[[ 1. 0.]
[ 0. 1.]]
Matrix a :
[[ 0. 0. 0. 0. 0.]
[ 1. 0. 0. 0. 0.]
[ 0. 1. 0. 0. 0.]
[ 0. 0. 1. 0. 0.]]
Note :
These codes won’t run on online-ID. Please run them on your systems to explore the working.
Last Updated :
04 Aug, 2021
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