/Python/Python replace values in a matrix

Python replace values in a matrix

Replace matrix values python

>>> import numpy as np
   >>> M = np.arange(10)
   >>> M
   array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9])
   >>> M[(M > 2) & (M < 7)] = -1
   >>> M
   array([ 0,  1,  2, -1, -1, -1, -1,  7,  8,  9])

Source: moonbooks.org

Replace matrix values python

>>> A = np.array((1,7,3,8,4,9,1))
>>> np.where(A>4,1,A)
array([1, 1, 3, 1, 4, 1, 1])

Source: moonbooks.org

Similar codes

9 votes320 views1 answer
Comment out a block in python
Python
-1 vote330 views1 answer
Receipt data extraction python
Python
1 vote329 views1 answer
Python clamp
Python
0 vote347 views1 answer
3d plot
Python
36 votes307 views2 answers
Python3 iterate through indexes
Python
0 vote369 views2 answers
ValueError: 'mean_absolute_error' is not a valid scoring value. Use sorted(sklearn.metrics.SCORERS.keys()) to get valid options.
Python
45 votes330 views1 answer
How to turn python vs code into a executable
Python
0 vote323 views1 answer
Class Student(): def name(self):
Python
0 vote1.1K views1 answer
Which of the following statements is used to create an empty set in python?
Python
4 votes365 views3 answers
Pandas remove row if missing value in column
Python