/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

0 vote145 views1 answer
Try: if '1' != 1: raise "someError" else: print("someError has not occurred") except "someError": print ("someError has occurred")
Python
2 votes188 views2 answers
Django template array index
Python Django
1 vote154 views1 answer
Python count words in file
Python
8 votes131 views2 answers
Import Image
Python
1 vote424 views1 answer
Python iterate over multidimensional dictionary
Python
9 votes138 views4 answers
Pandas count number of rows with value
Python
6 votes164 views3 answers
Messages django
Python Django
0 vote128 views1 answer
Convert a column to camel case in python
Python
2 votes181 views1 answer
Flask if statement
Python Flask
0 vote141 views1 answer
How to write user input to a file in python
Python